CN103664060A - Pre-coated new sand, preparation method thereof and composite permeable brick - Google Patents
Pre-coated new sand, preparation method thereof and composite permeable brick Download PDFInfo
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- CN103664060A CN103664060A CN201210325211.3A CN201210325211A CN103664060A CN 103664060 A CN103664060 A CN 103664060A CN 201210325211 A CN201210325211 A CN 201210325211A CN 103664060 A CN103664060 A CN 103664060A
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Abstract
The invention provides pre-coated new sand, a preparation method thereof and a composite permeable brick. The pre-coated new sand comprises natural sand, pre-coated resin, a pre-coated curing agent, a coupling agent and a lubricating agent, wherein the pre-coated resin is weather-resistant alicyclic epoxy resin; the pre-coated curing agent is modified alicyclic amine. The composite permeable brick comprises a sandy surface layer and a concrete bottom layer, wherein the sandy surface layer contains pre-coated new sand and a fabric adhesive; the pre-coated new sand is the pre-coated new sand provided by the invention; the concrete bottom layer comprises a crushed stone aggregate, cement, coal ash, a water reducer and water. According to the pre-coated new sand provided by the invention, the composite permeable brick prepared by the pre-coated new sand has the characteristics of being high in strength and good in water permeability, and the composite permeable brick is simple in molding technology and low in cost.
Description
Technical field
The present invention relates to new sand of a kind of pre-overlay film and preparation method thereof, also relate to and comprise the new husky composite water permeable brick of described pre-overlay film.
Background technology
Along with developing rapidly of economy, increasing urban surface is covered by pitch, concrete, rock or rostone closely knit and " accumulation of heat ", cause extension and the aggravationization of city " heat island " phenomenon.The use of water-permeable brick makes the rainwater recharge of groundwater that can promptly permeate the ground with its good permeable, ventilative and water-retentivity, thereby has guaranteed effective utilization of valuable Freshwater resources.Water-permeable brick not only can solve that rainwater is accumulated rainy day, cross flow phenomenon and alleviate the flood discharge pressure of sewerage system, and fine day also can adjusting air humidity, Water, steam circulation, minimizing noise and dust, inhibition city " heat island " phenomenon, therefore, water-permeable brick is used widely abroad as a kind of functional pavement material.
Water-permeable brick on domestic market mainly contains sintered ceramic water-permeable brick, concrete permeable brick, resin-bonded husky base water-permeable brick.Sintered ceramic water turns smooth surface, intensity is high and permeable respond well, but because the gap of brick is larger, easily by dust, is stopped up and can not be permeable, simultaneously because this manufacturing process turning is flourishing complicated, need to consume mass energy and valuable clay resource.Concrete permeable brick is with low cost, moulding is simple, permeation rate is better, but its surface irregularity, intensity is low and dust easily stops up permeable duct and can not be by extensive utilization and extention.Apparent good, anti-skidding, the ultimate compression strength attractive in appearance, permeable of resin-bonded sand base water-permeable brick is adjustable, good water-retaining property according to demand, but the cost of its brick is too high, cannot be widely used.Resin and concrete composite brick greatly reduce the cost turning, and have solved the apparent coarse and permeable susceptible to plugging defect of concrete brick, have broad application prospects.
Chinese patent application CN1450018 discloses a kind of environment protection type water permeable brick, and its weight proportion is: granularity is 6～35 object bauxitic clay particle 70～85%, 250～300 order well as clay fines 7～10%, talcum powder 3～6%, wilkinite 4～8%.By mixing, moulding, oven dry, high-temperature calcination, form water-permeable brick; Chinese patent application CN1242738 discloses a kind of manufacture method of water-permeable brick, at its weight proportion, is: 85～94%, low temperature high viscosity clay adds water mixing, compression moulding, high temperature sintering for 6～15% times and forms water-permeable brick; Chinese patent application CN101423376 discloses a kind of ceramic water-permeable brick and manufacture method thereof, at its weight proportion, is: waste ceramic powder 75～85%, cullet powder 2～5%, low temperature clay 10～20%, Wingdale 2～5%, dextrin 2～4%, albite 0～6%, 2～5% times processes of water are uniformly mixed, extrusion forming, dry base substrate, high temperature sintering moulding form water-permeable brick.These three its common defects of the patent application about sintering class water-permeable brick are complex forming technology but also need to consume mass energy and valuable clay resource not only.
Chinese patent application CN101565923 discloses a kind of concrete permeable brick, then its proportioning is: cement 18～25%, stone 78～82% (surface layer cobble-stone diameter is that 0.5～2mm, basic unit's cobble-stone diameter are 3～8mm), pigment add that water is uniformly mixed for 0.36～1% time, shake extrusion molding in mould, vapor cure forms a kind of concrete permeable brick; Chinese patent application CN101671987 discloses a kind of cement concrete water-permeable brick, porous pavement and production method thereof, its base-material proportioning: cement 10～20%, sand 15～25%, stone 25～35%, water-absorbing resin (SPA) 0.1～0.5%, asphalt powder 1～15%, dispersing agent NNO (methylene radical entsufon sodium) 1～6%, FDN water reducer (naphthalene water reducer) 2～15%.Fabric proportioning: cement 20～30%, sand 15～25%, mineral dye 2～18%, water-absorbing resin (SPA) SPA0.1～0.5%, asphalt powder 1～15%, diffusion agent N N01～6%, FDN water reducer 2～15%, stone 0～10% are produced a kind of cement concrete water-permeable brick or porous pavement.There is surface irregularity in above two related water-permeable bricks of patent application, color and luster is single and during moulding because cement bleeding is easy to affect the painted of top layer.
Chinese patent application CN1966861 discloses a kind of composite brick, and its drift-sand of take 0.05～2mm is fabric aggregate, with in epoxy resin, acrylate resin, urethane one or more be combined as tackiness agent.Basic unit take cement as tackiness agent, 2～10mm quartz sand be aggregate, natural 2～10mm quartz sand resources is considerably less, originates limited, the quartz sand cost of hand breaking is high, intensity is high, is not suitable for doing water-permeable brick.Although this patent has reduced the cost of resin type all-body tile, owing to fabric drift-sand particle surface used not being carried out to pre-overlay film processing, cause sand insecure with the combination of tackiness agent, the intensity of water-permeable brick is low; Especially when water-permeable brick is met water, the water capacity is easily infiltrated between sand and tackiness agent, causes brick body wet tenacity to decline at double, in the rainy day or there is brick body under regimen condition easily to destroy.Meanwhile, the orthopaedics material particle size range on this water-permeable brick top layer is too wide, piles up too densification, affects permeable.
Summary of the invention
In order to solve, the concrete permeable brick surface irregularity, the intensity that in above-mentioned prior art, exist are low and gap is easily waterproof by dust obstruction in the present invention; The bonding entire body water-permeable brick of sand radix fat cost is high and wet tenacity is low and ceramic water-permeable brick cost is high and the waterproof deficiency that waits is easily stopped up in gap, develops that a kind of cost is low, moulding process is simple, intensity is high, surface aesthetic, permeable fast composite brick and can make newly sand and preparation method thereof of pre-overlay film that composite brick realizes the characteristic that intensity is high.
In order to realize object of the present invention, the invention provides a kind of pre-overlay film newly husky, the new sand hill of this pre-overlay film is containing natural sand, pre-film covered resin, pre-overlay film solidifying agent, coupling agent and lubricant; Described pre-film covered resin is weathering resistance cycloaliphatic epoxy resin, and described pre-overlay film solidifying agent is modified alliphatic polyamine.
The present invention also provides a kind of above-mentioned pre-overlay film new husky preparation method, and the method comprises: say natural sand heating, under agitation add coupling agent and pre-film covered resin; Add solidifying agent and stir; When material is about to conglomeration, add lubricant, continue to stir until material disperses completely.
The present invention also provides a kind of composite water permeable brick, and this composite brick comprises sand foundation base and concrete base; Described sand foundation base comprises the new husky and fabric tackiness agent of pre-overlay film, and the new sand of described pre-overlay film is that pre-overlay film provided by the invention is newly husky, and described concrete base comprises crushed stone aggregate, cement, minute coal ash, water reducer and water.
Newly husky according to the invention provides the pre-overlay film of ear, the composite water permeable brick that can make to be made by the new sand of this pre-overlay film just has that intensity is high, the characteristic of good water permeability, and the moulding process of described composite water permeable brick is simple, cost is low.
Embodiment
The new sand hill of pre-overlay film provided by the invention is containing natural sand, pre-film covered resin, pre-overlay film solidifying agent, coupling agent and lubricant; Described pre-film covered resin is weathering resistance cycloaliphatic epoxy resin.Described pre-overlay film solidifying agent is modified alliphatic polyamine.
Described natural sand can be selected from the sand of any natural formation, such as comprising drift-sand, river sand and sea sand etc.The particle diameter of this natural sand is preferably 0.125～0.6mm, and preferably through washing or pickling, its turbidity is less than 100FTU.
The content of described pre-film covered resin is preferably 0.1～2 quality % of described natural sand quality, 0.3～2 quality % more preferably, described pre-film covered resin is preferably weathering resistance cycloaliphatic epoxy resin, for example can be selected from the hydrogenated bisphenol A epoxy resin, 1 being obtained commercially, 2-environment glycol glycidyl ether, two (3,4-epoxy cyclohexyl) one or more in manthanoate, two (2,3-oxirane ring amyl group) ether.
Described pre-overlay film solidifying agent is modified alliphatic polyamine, for example, be modified as polyamine and be preferably the reaction product at 40-70 ℃ that 1mol alicyclic polyamine and 0.3～0.7mol select in free cycloaliphatic epoxy resin, neopentylglycol diglycidyl ether and vinyl cyanide at least one; Wherein, described alicyclic polyamine is preferably selected from one or more in isophorone diamine, amine ethyl piperazidine, two amino cyclohexane, diamino two ring ethyl methane, adjacent diamines methylcyclopentane and Meng alkane diamines; The preferred glycolylurea epoxide resin of institute's cycloaliphatic epoxy resin of telling, hydrogenated bisphenol A epoxy resin, 1, one or more in 2-ring ethylene glycol diglycidylether, epoxy-cyclohexane.The consumption of described pre-overlay film solidifying agent is preferably the 10-40 quality % of pre-film covered resin quality.
Described coupling agent can be selected from any various coupling agents well known by persons skilled in the art, in order to improve the cohesive strength of pre-film covered resin and natural sand, preferred described coupling agent is silane coupling agent, the example of silane coupling agent is preferably γ-aminopropyl triethoxysilane, N, two (the beta-hydroxyethyl)-gamma-amino propyl group trimethoxy silane of N-, stupid amido methylene triethoxyl silane, γ-glycidyl ether propyl trimethoxy silicane etc.The content of described coupling agent is preferably 0.3～3 quality % of pre-film covered resin quality, more preferably 0.5～2 quality %.
Described lubricant can be selected any various lubricants well known by persons skilled in the art, in order to make being separated from each other between the natural sand of pre-overlay film in solidification process, guarantees the integrity of natural sand overlay film, preferably uses stearate.Such as calcium stearate, Zinic stearas and Magnesium Stearate etc.The content of described lubricant is preferably the 1-15 quality % of pre-film covered resin, more preferably 2-10 quality %, also more preferably 3-6 quality %.
Newly husky according to pre-overlay film provided by the invention, in order to make the new husky exterior coloring of pre-overlay film attractive in appearance and colour-fast, can preferably further contain weather-proof color, for example white pigment can be used Rutile type Titanium Dioxide, blue pigments can be used phthalocyanine blue, and veridian can use the chrome yellow, red pigment can be by red iron oxide etc. with green, the yellow ultramarine of the phthalein mountain valley with clumps of trees and bamboo.The consumption of described weather-proof color is preferably the % of the 0.01-0.1 quality of natural sand quality
Pre-overlay film provided by the invention is new husky preparation method comprise: natural sand is heated to 200-250 ℃, then cooling, when temperature is reduced to 190 ± 10 ℃, under agitation add coupling agent and pre-film covered resin, the time of stirring is 60 ± 20 seconds, makes pre-film covered resin and coupling agent overlay film on natural sand, when needs are used pigment, add pigment for this reason, and stir 30+10 second.Add solidifying agent and stir; When material is about to conglomeration, add lubricant, continue to stir until material disperses completely; Material is cooled to envrionment temperature.
Composite water permeable brick provided by the invention comprises sand foundation base and concrete base; Described sand foundation base comprises pre-coated new sand and fabric tackiness agent, and described concrete base comprises aggregate, cement, flyash, the system that dabbles, agent and water.
In the preferred case, the thickness of described sand foundation base is 3-10mm, and described concrete thickness is 35-110mm.
In the preferred case, the mass ratio of described sand foundation base and described concrete base is 1: 5-20.
In the preferred case, in described sand foundation base, described fabric tackiness agent is the 3-12 quality % of the new sandy amount of pre-overlay film; In described concrete base, the mass ratio of described cement and crushed stone aggregate is 1; 2-5, described flyash accounts for the 1-20 quality % of cement quality, and described water reducer accounts for the 0.4-3 quality % of cement quality, and the mass ratio of water and cement is 0.4-0.7: 1.
In the preferred case, described fabric tackiness agent comprises fabric resin and fabric solidifying agent, described fabric resin comprises polyether-modified alicyclic resin and hydrogenated bisphenol A epoxy resin, further preferably comprises photostabilizer and oxidation inhibitor, and described solidifying agent is alicyclic resin modified alliphatic polyamine.
Described fabric tackiness agent is preferably used Beijing caprice to reach the adhesive specially that Science and Technology Ltd. is composite water permeable brick exploitation of the present invention, i.e. the QXEPH-1 solidifying agent of QXEP-1 resin and coupling.QXEP-1 resin demand preferably accounts for 3～10 quality % of the new sandy amount of pre-overlay film, and QXEPH-1 hardener dose preferably accounts for 15～40% of QXEP-1 resin quality.It is high that this tackiness agent has intensity, the characteristic of water-permeable and good weatherability, thereby can further make the intensity of composite water permeable brick of the present invention high, good water permeability, and good weatherability, when pre-overlay film is new husky, with this tackiness agent, pass through vibration-extrusion together after curing molding, between sand grains, form the kapillary mutually connecting, when rainwater is trickled down on this kapillary, because the new sand grain of this pre-overlay film surface has certain wetting ability, water infiltrates rapidly capillary wall, in pipe, liquid level is spill, the curved liquid surface forming produces the force action of downward additional pressure and rainwater self gravitation, rainwater infiltrates rapidly lower floor along the kapillary of these perforations.
Described cement can be various cement well known by persons skilled in the art, for example, can be commercially available silicate cement, according to the requirement of the intensity of water-permeable brick more preferably strength grade be 32.5,42.5,52.5 and 62.5 silicate cement.
Described aggregate can be aggregate well known by persons skilled in the art, for example, rubble and cobble are carried out to particle diameter scope that hand breaking obtains and be preferably 1～10mm, more preferably 2～8mm aggregate.The mass ratio of cement and aggregate is 1: 2～5.
Described flyash can be various flyash well known by persons skilled in the art, in order to improve the workability of concrete bed material and to improve intensity, more preferably uses the flyash meeting in international GB1596-91 for cement and concrete.The content of described flyash preferably accounts for 1～20 quality % of cement quality, more preferably 5～10 quality %.
Described water reducer can be various water reducers well known by persons skilled in the art, in the preferred case, in order to improve the intensity of composite water permeable brick bottom and to prevent that the cement accumulation of salt in the surface soil brick surface from turning white, use high-performance water reducing agent poly carboxylic acid series water reducer, as the HK-1 high-efficiency water-reducing agent of poly-carboxylic acid of Shanxi Hua Kai great achievement Science and Technology Ltd., the Shanxi SX-J1 of San Xiong building materials company limited high performance water reducing agent of polyocarboxy acid, the Beijing Orient fresh green development in science and technology PC100 of company limited polycarboxylate water-reducer etc.The content of water reducer preferably accounts for 0.4～3 quality % of cement quality, more preferably 0.5～1.2 quality %.
The preparation method of composite brick of the present invention can adopt and well known to a person skilled in the art the whole bag of tricks, for example, can use following methods:
Use the moulding of multifunction hydraulic brick press to prepare composite water permeable brick, forming method comprises the following steps: 1) by content range powder mix coal ash, water reducer, cement, stone and the water of above-mentioned each component, the concrete bed material obtaining; 2) mix the new husky and fabric tackiness agent of pre-overlay film, obtain fabric; 3) the concrete bed material mixing is sent in the mould of multifunction hydraulic brick press to vibration-extrusion 1～3 second; 4) rise pressure head, automatic cleaning pressure head; 5) fabric mixing is sent into bed material in this mould above, vibration-extrusion again; 6) 3～5 seconds shaping and demouldings, cement products carries out maintenance routinely, curing time is no less than 21 days.
Adopt the mode of embodiment to be explained in further detail the present invention below.
Embodiment 1
1, the new husky preparation of pre-overlay film
After being heated to 210 °, pours in FS1612 type sand mill (Qingdao Wu Yang casting machine company limited) drift-sand of 200 kilograms (particle diameter 0.425～0.212mm), while being cooled to 190 ° of C, add 10 grams of 1 kilogram of hydrogenated bisphenol A epoxy resin (trade mark: AL-3040, Yantai difficult to understand sharp Fu Hua work company limited) and γ-glycidyl ether propyl trimethoxy silicanes to stir 40 seconds; Add 500 grams of red iron oxides to stir 30 seconds; Add 150 grams of stirrings of modified alliphatic polyamine solidifying agent A (different Fo Er diamines, neopentylglycol diglycidyl ether and vinyl cyanide mol ratio are 1: 0.3: 0.4), when starting conglomeration, material add the calcium stearate of 100 grams to stir curing 180 seconds, cooling, sieve, can obtain pre-overlay film drift-sand.
2, the preparation of water-permeable brick
(1) fabric batching:
Take 50 kilograms of the pre-overlay film drift-sands of the above-mentioned redness preparing and put into QXH-100 type mixer (Beijing caprice reaches Science and Technology Ltd.) stirring; After taking the tackiness agent that comprises 0.7 kilogram, 2.3 kilograms of QXEP-1 resins (Beijing caprice reaches Science and Technology Ltd.) and QXEPG-1 solidifying agent (Beijing caprice reaches Science and Technology Ltd.) and putting together and stir, add in the mixer that pre-overlay film drift-sand is housed and continue to stir, tackiness agent stops stirring after stirring with pre-overlay film drift-sand.
(2) bed material batching:
0.7 kilogram of 5 kilograms of 27 kilograms, 66 kilograms of silicate cements, water, first level flour coal ash, PC100 polycarboxylate water-reducer that to take particle diameter and be the machine rubble of 3～8mm and 220 kilograms of machine crushed gravel compounds, strength grade be 52.5 are put into concrete mixer and are stirred.
(3) composite water permeable brick moulding:
Molding device adopts the special-purpose brick equipment of S F-Y500 type, six of each brick outputs.First 35.7 kilograms of concrete bed material batchings obtained above are sent in six moulds of 150X300mm, vibration mold pressing 3 seconds, rise and cleaning pressure head, sending into the bed material top of 6 kilograms of fabric batchings obtained above at six moulds, vibration mold pressing is after 5 seconds, moulding, the demoulding, put, by cement products requirement maintenance, curing time is 28 days.
The sand foundation base thickness of gained composite water permeable brick is 8.5mm, and concrete bottom layer thickness is/1.6mm.
Embodiment 2
1, carry out the new husky preparation of pre-overlay film of painted processing
Except changing the hydrogenated bisphenol A epoxy resin in embodiment 1 into 2 kilograms, say that γ-glycidyl ether propyl trimethoxy silicane changes 20 grams into, and change modified alicyclic polyamine solidifying agent into 300 grams, and before adding modified alliphatic polyamine solidifying agent, add beyond 500 grams of red iron oxides stir 30 seconds, according to the method identical with embodiment 1, prepare red pre-overlay film drift-sand.
2, the preparation of water-permeable brick
(1) fabric batching:
Taking 50 kilograms of the pre-overlay film drift-sands of the above-mentioned redness preparing puts into mixer and stirs; After taking the tackiness agent that comprises 0.8 kilogram, 2.7 kilograms of QXEP-1 resins and qxepg-1 solidifying agent and putting together and stir, add in the mixer that pre-overlay film drift-sand is housed and continue to stir, tackiness agent stops stirring after stirring with red pre-overlay film drift-sand.
(2) bed material batching:
0.9 kilogram of 7 kilograms of 35 kilograms, 80 kilograms of silicate cements, water, first level flour coal ash, HK-1 high-efficiency water-reducing agent of poly-carboxylic acid that to take granite stones that particle diameter is 2～5mm and 240 kilograms of cobble compounds, strength grade be 62.5 are put into concrete mixer and are stirred.
(3) composite water permeable brick moulding:
Forming method is identical with embodiment 1.
The sand foundation base thickness of gained composite water permeable brick is 8.5mm, and concrete bottom layer thickness is 70.9mm.
Embodiment 3
1, carry out the new husky preparation of pre-overlay film of painted processing
After the drift-sand of 200 kilograms (particle diameter 0.425～0.212mm) is heated to 240 ° of C, pour in sand mill, while being cooled to 200 ° of C, add 2.8 kilograms of hydrogenated bisphenol A epoxy resins, 40 grams of stirrings of γ-glycidyl ether propyl trimethoxy silicane 30 seconds; Add dark green 150 grams of phthalein to stir 40 seconds; Add modified alliphatic polyamine solidifying agent B (isophorone diamine, 1,2-cyclohexandiol diglycidylether, epoxy-cyclohexane mol ratio are 1: 0.2: 0.3) 560 grams of stirrings, when starting conglomeration, material add the calcium stearate of 150 grams to stir curing 150 seconds, cooling, sieve, can obtain green pre-overlay film drift-sand.
2, the preparation of water-permeable brick
(1) fabric batching:
Taking 50 kilograms of the pre-overlay film drift-sands of the above-mentioned green preparing puts into mixer and stirs; After taking the tackiness agent that comprises 0.6 kilogram, 1.9 kilograms of QXEP-1 resins and QXEPG-1 solidifying agent and putting together and stir, add in the mixer that pre-overlay film drift-sand is housed and continue to stir, tackiness agent stops stirring after stirring with pre-overlay film drift-sand.
(2) bed material batching:
0.6 kilogram of 3 kilograms of 30 kilograms, 60 kilograms of silicate cements, water, first level flour coal ash, HK-1 high-efficiency water-reducing agent of poly-carboxylic acid that to take granite stones that particle diameter is 3～8mm and 24 kilograms of cobble compounds, strength grade be 42.5 are put into concrete mixer and are stirred.
(3) composite water permeable brick moulding:
Forming method is identical with embodiment 1.
The sand foundation base thickness of gained composite water permeable brick is 8.3mm, and concrete bottom layer thickness is 70.4mm.
Embodiment 4
1, carry out the new husky preparation of pre-overlay film of painted processing
After the drift-sand of 200 kilograms (particle diameter 0.425～0.150mm) is heated to 220 ° of C, pour in sand mill, while being cooled to 200 ° of C, add 40 grams, 0.5 kilogram of the epoxy resin that 1.5 kilograms of hydrogenated bisphenol A epoxy resins, the trade mark are CER-170 (Wuhan Sen Mao Fine Chemical Co., Ltd) and γ-glycidyl ether oxypropyl trimethyl silane to stir 30 seconds; Add 300 grams of chrome yellow to stir 40 seconds; Adding modified alliphatic polyamine solidifying agent B is 600 grams of stirrings, adds the calcium stearate of 150 grams stir to solidify when material starts conglomeration 180 seconds, cooling, sieve, and can obtain yellow pre-overlay film drift-sand.
2, the preparation of water-permeable brick
(1) fabric batching:
Fabric batching: take 50 kilograms of the pre-overlay film drift-sands of the above-mentioned yellow preparing and put into mixer and stir; After taking the tackiness agent that contains 0.5 kilogram, 1.5 kilograms of QXEP-1 resins and QXEPG-1 solidifying agent and putting together and stir, add in the mixer that pre-overlay film drift-sand is housed and continue to stir, tackiness agent stops stirring after stirring with pre-overlay film drift-sand.
(2) bed material batching:
0.7 kilogram of 4 kilograms of 28 kilograms, 70 kilograms of silicate cements, water, first level flour coal ash, SX-J1 high-efficiency water-reducing agent of poly-carboxylic acid that to take rubble that particle diameter is 3～5mm and 240 kilograms of cobble compounds, strength grade be 32.5 are put into concrete mixer and are stirred.
(3) moulding of composite water permeable brick:
Forming method is identical with embodiment 1.
The sand foundation base thickness of gained composite water permeable brick is 8.3mm, and concrete bottom layer thickness is 70.2mm.
Comparative example 1
1, the employing drift-sand identical with embodiment 1, and do not carry out pre-overlay film processing.
2, the preparation of water-permeable brick
The forming method of fabric batching, bed material batching and composite water permeable brick is all identical with embodiment 1.
The sand foundation base thickness of gained composite water permeable brick is 8.5mm.Concrete bottom layer thickness is 71.6mm.
Performance test
1, pre-overlay film drift-sand and the not intensity contrast of pre-overlay film drift-sand
Respectively the not pre-overlay film drift-sand of the resulting pre-overlay film drift-sand of embodiment 1-4 and comparative example 1 is tested in accordance with the following methods:
2 kilograms of drift-sands that take pre-overlay film drift-sand or not pre-overlay film are put into a bowl formula mixer and are stirred, and after respectively taking 28 grams, 90 grams of QXEP-1 resins and QXEPG-1 solidifying agent and putting together and stir, add in mixer and stir and within 2 minutes, stop stirring.
Take 50 grams of resulting compounds, put into diameter and be the mould of 50 millimeters, in WHY-300 type microcomputer-control full-automatic pressure testing machine, load 5,000 newton's power 30 seconds, 10 of sample preparations, ambient cure 48 hours, gets 5 samples and surveys dry ultimate compression strength, averages thereafter; Another 5 samples were put into normal-temperature water after 24 hours, and hygrometric ultimate compression strength, averages thereafter.The test of dry ultimate compression strength and wet compressive strength is carried out according to standard JC/T945-2005.Institute
Must the results are shown in table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 5 | |
| Dry ultimate compression strength (MPa) | ?60.2 | ?68.4 | ?75.2 | ?62.3 | ?42.4 |
| Wet compressive strength (MPa) | ?54.3 | ?64.1 | ?68.8 | ?57.6 | ?21.5 |
2, ultimate compression strength, wear resistance and coefficient of permeability
The composite water permeable brick that embodiment 1-4 and comparative example 1 are prepared is tested according to standard JC/T945-2005, and acquired results is shown in table 2-6.
Table 2
Table 3
Table 4
Table 5
Table 6
From the test result of table 1, can find out, in the new husky dry ultimate compression strength of the resulting pre-overlay film of embodiment of the present invention 1-4 and the equal comparative example 1 of wet compressive strength, do not carry out the height of the new sand of pre-overlay film, illustrate that the new husky ultimate compression strength of pre-overlay film of the present invention is high, especially wet compressive strength is high, therefore the crucial wet tenacity that has been to solve resin sand base water-permeable brick.
The test result of contrast table 2 and table 6 can be found out, ultimate compression strength, water-retentivity and the water-permeable of the composite water permeable brick of the embodiment of the present invention 1 gained be good than comparative example 1 resulting composite water permeable brick all, the intensity that composite water permeable brick of the present invention is described is high, and water-retentivity and water-permeable are all excellent.
Claims (7)
1. a pre-overlay film is newly husky, and the new sand hill of this pre-overlay film is containing natural sand, pre-film covered resin, pre-overlay film solidifying agent, coupling agent and lubricant; Described pre-film covered resin is weather resisteant cycloaliphatic epoxy resin, and described pre-overlay film solidifying agent is modified alliphatic polyamine.
2. pre-overlay film according to claim 1 is newly husky, wherein, the content of described pre-film covered resin is 0.1～2 quality % of natural sand quality, the content of described pre-overlay film solidifying agent is 10～40 quality % of pre-film covered resin quality, the content of described coupling agent is 0.3～3 quality % of pre-film covered resin quality, and the content of described lubricant is 1～15 quality % of pre-film covered resin quality.
3. pre-overlay film according to claim 1 and 2 is newly husky, and wherein, the particle diameter of described natural sand is 0.125～0.6mm.
4. pre-overlay film according to claim 1 is newly husky, and wherein, described pre-film covered resin is selected from hydrogenated bisphenol A epoxy resin, 1, one or more in 2-cyclohexandiol glycidyl ether, two (3,4-epoxy cyclohexyl) manthanoate, two (2,3-oxirane ring amyl group) ether:
Described modified alliphatic polyamine is that every 1mol alicyclic ring polyamines and 0.3～0.7mol have been selected from glycolylurea epoxide resin, hydrogenated bisphenol A epoxy resin, 1, the reaction product of at least one in 2-cyclohexandiol diglycidylether, epoxy-cyclohexane, neopentyl glycol glycidyl ether and propenal; Wherein.Described alicyclic polyamine is selected from one or more in isophorone diamine, amine ethyl piperazidine, two amino cyclohexane, diamino two cyclohexyl methane, adjacent diamines methylcyclopentane and Meng alkane diamines;
Described coupling agent is silane coupling agent;
Described lubricant is selected from hard hydrochloric acid.
1, the new husky preparation method of pre-overlay film claimed in claim 1, the method comprises:
By natural sand heating, under agitation add coupling agent and pre-film covered resin; Add solidifying agent and stir; When material is about to unite, add lubricant, continue to stir until material disperses completely.
2, the method described in 5 as requested, wherein, described in say that the temperature of natural sand heating is 200～250 ° of C.
3, a composite water permeable brick, this composite water permeable brick comprises sand foundation base and concrete base;
Described sand foundation base comprises the new husky and fabric tackiness agent of pre-overlay film, and the new sand of described pre-overlay film is newly husky according to the pre-overlay film described in any one in claim 1-4; Described concrete base comprises machine crushed stone aggregate, cement, flyash, water reducer and water.
5. composite water permeable brick according to claim 7, wherein, the mass ratio of described sand foundation base and described concrete base is 1: 5～20.
6. composite water permeable brick according to claim 7, wherein, in described sand foundation base, described fabric tackiness agent is 3～12 quality % of the new sandy amount of pre-overlay film; In described concrete base, the mass ratio of described cement and aggregate is 1: 2～5, and described flyash accounts for 1～20 quality % of cement quality, and described water reducer stands in 0.4～3 quality % of cement quality, and the mass ratio of water and cement is 0.4～0.7: 1.
7. composite water permeable brick according to claim 7, wherein, described fabric tackiness agent comprises fabric resin and fabric solidifying agent, and described fabric resin comprises polyether-modified cycloaliphatic epoxy resin and hydrogenated bisphenol A epoxy resin, and described solidifying agent is cycloaliphatic epoxy resin modified alliphatic polyamine.
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