CN106747136B - High-adhesion leaded light cement-base composite material and preparation method thereof - Google Patents

High-adhesion leaded light cement-base composite material and preparation method thereof Download PDF

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CN106747136B
CN106747136B CN201611112582.8A CN201611112582A CN106747136B CN 106747136 B CN106747136 B CN 106747136B CN 201611112582 A CN201611112582 A CN 201611112582A CN 106747136 B CN106747136 B CN 106747136B
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cement
optical fiber
composite material
adhesion
base composite
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CN106747136A (en
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王伯昕
甘艳朋
王清
赵建宇
王国超
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Jilin University
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Jilin University
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
    • C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/0037—Materials containing oriented fillers or elements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a kind of high-adhesion leaded light cement-base composite materials and preparation method thereof, it is intended to overcome the problems, such as traditional material optical fiber with concrete substrate material bad adhesion, easy to fall off, easy to crack, tensile strength is low；It includes self-stress aluminum sulfate cement, middle sand, microlith, water, flyash, epoxy resin, isocyanates, styrene-butadiene emulsion, Sika third generation poly carboxylic acid series super plasticizer, optical fiber and KH-570 silane coupling agent；It also uses material protection agent；Self-stress aluminum sulfate cement, middle sand, microlith, water, flyash, epoxy resin, isocyanates, styrene-butadiene emulsion, Sika third generation poly carboxylic acid series super plasticizer mass ratio are as follows: 1:1.2:0.8:0.36:0.4:0.3:0.28:(5.3%~6.8%): 0.13%；The concentration of KH-570 silane coupler solution is 5%.The present invention also provides a kind of manufacturing methods of high-adhesion leaded light cement-base composite material.

Description

High-adhesion leaded light cement-base composite material and preparation method thereof
Technical field
The present invention relates to a kind of materials for belonging to civil engineering materials field, it more particularly relates to a kind of high Caking property leaded light cement-base composite material and preparation method thereof.
Background technique
Traditional construction wall generallys use normal concrete as load-carrying members, but these walls are opaque, thick and heavy close It is real, however the pursuit and common recognition of building energy conservation and the beautiful always architecture field of building.The invention of light guide concrete is so that building wall Body can play the role of building energy conservation and changeable decorative effect, and this special-effect becomes heavy closely knit concrete Material is glittering and translucent material.But it is deposited between fiber optic materials and cement-based material in traditional guide-lighting cement-base composite material In bad adhesion, problem easy to fall off, easy to crack, tensile strength is low, it is unfavorable for the long-term stress of structure.Simultaneously with age Growth, the exposed part of fiber optic materials in light guide concrete is perishable to there is aging phenomenon, these are unfavorable for structure Stress and cracking resistance.
Summary of the invention
The technical problem to be solved by the present invention is to overcome fiber optics and water in traditional guide-lighting cement-base composite material It is multiple to provide a kind of high-adhesion leaded light cement base for cement-based material bad adhesion, problem easy to fall off, easy to crack, tensile strength is low Condensation material and preparation method thereof.
In order to solve the above technical problems, the present invention is achieved by the following technical scheme: the high-adhesion is guide-lighting Cement-base composite material includes self-stress aluminum sulfate cement, middle sand, microlith, water, flyash, epoxy resin, isocyanates, fourth Benzene lotion, Sika third generation poly carboxylic acid series super plasticizer, optical fiber and KH-570 silane coupling agent；
The self-stress aluminum sulfate cement, middle sand, microlith, water, flyash, epoxy resin, isocyanates, butylbenzene cream The mass ratio of liquid, Sika third generation poly carboxylic acid series super plasticizer are as follows: 1:1.2:0.8:0.36:0.4:0.3:0.28:(5.3%~ 6.8%): 0.13%；
The concentration of KH-570 silane coupler solution is 5%.
The diameter of microlith described in technical solution is no more than 8mm；The attenuation rate of fibre diameter 1mm, optical fiber are lower than 250dB/km；
The solid content of styrene-butadiene emulsion is 50%, pH=7.7~10,35~150mPa.s of viscosity.
High-adhesion leaded light cement-base composite material described in technical solution also uses material protection agent, material protection agent It is configured by dimethicone and fluorocarbon polymer, the mass ratio of dimethicone and fluorocarbon polymer is in material protection agent 1:0.9。
A kind of manufacturing method of high-adhesion leaded light cement-base composite material, its step are as follows:
1) optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2) will in step 1) treated fiber deployment in mold；Optical fiber wherein on the direction XY is orthogonal, X-direction light Fibre parallel arrangement, Y-direction optical fiber parallel arrangement, every layer of optical fiber parallel arrangement of Z-direction；
3) self-stress aluminum sulfate cement, middle sand, microlith, flyash are blended in by the mass ratio of 1:1.2:0.8:0.4 In concrete mixer, uniform stirring 60s is at dry batch 1；
4) 90s is mixed in epoxy resin and isocyanates by the mass ratio of 0.3:0.28, become evenly dispersed Mixed liquor 1；
5) it will be stirred evenly in step 3) in the dry batch 1 to be formed addition step 4) and stir evenly the mixed liquor 1 to be formed In and together stirring 120s formed dry batch 2；
6) by 0.36:(5.3%~6.8%): 0.13% mass ratio surpasses water, styrene-butadiene emulsion and third generation polycarboxylic-acid 30s is mixed in plasticiser, becomes finely dispersed mixed liquor 2；
7) mixed liquor 2 to be formed will be stirred evenly in step 6) to be added in the dry batch 2 being uniformly mixed in step 5), stirring It mixes and stirs 180s in machine into the cement-base composite material mixture of high-adhesion；
8) the cement-base composite material mixture of high-adhesion is uniformly poured into step 2) in the mold for having arranged optical fiber, It forms on a vibration table or using vibrating spear vibration 30s, demoulds and take out after maintenance 24 hours；
9) it is 20 ± 3 DEG C and RH90% or more under common curing condition, conserves to 28d age, then by the water of hardening Cement-based composite material test block is cut with cutting machine, makes cross section perpendicular in fiber optic bundle direction and fiber optic point is made to expose 90% or more； The cutting plane of disruption finally is polished with sander, obtains high-adhesion leaded light cement-base composite material；
10) dimethicone and fluorocarbon polymer are configured to material protection agent by the mass ratio of 1:0.9, by material protection Agent is sprayed on the cutting section of cement-base composite material test block.
Every layer of optical fiber of the parallel arrangement of X-direction optical fiber described in technical solution, Y-direction optical fiber parallel arrangement, Z-direction is flat Row arrangement refers to:
The adjacent 2 optical fiber parallel spacings of X-direction are 3mm, and the adjacent 2 optical fiber parallel spacings of Y-direction are 3mm, every layer of Z-direction Optical fiber parallel spacing is 5mm.
Compared with prior art the beneficial effects of the present invention are:
1. the caking property of optical fiber and cement-based material in high-adhesion leaded light cement-base composite material of the present invention It can be greatly improved, adhesive property is 1.51 times of conventional light guide cement-base composite material.This is because styrene-butadiene emulsion is from micro- The generation and its stability series in cement slurry for the ettringite phase that sight level promotes sulphate aluminium cement aquation to generate, so that Chemical bonding force value is stablized persistently, improves the adhesive property of matrix to the maximum extent；
2. high-adhesion leaded light cement-base composite material of the present invention greatlys improve guide-lighting cement-base composite material Cracking strength and tensile strength, draft be 1.51 times of conventional light guide cement-base composite material.One of reason It is the interface for being improved its basal body interface on thin seen with KH-570 silane coupling agent treated optical fiber and being gathered materials with matrix Performance, the alkoxy-functional in KH-570 silane coupling agent occur hydrolysis and obtain under water and concrete alkali catalytic action To silicone hydroxyl, condensation reaction occurs between silicone hydroxyl, forms stable silicon oxygen chemistry of silicones key, passes through these chemical bonds, silane point Son can be firmly attached in concrete surface and capillary channel, these chemical bonds improve between matrix and various constraint interfaces Adhesion strength, and then improve the cracking strength and tensile strength of guide-lighting cement-base composite material；
3. high-adhesion leaded light cement-base composite material of the present invention greatlys improve guide-lighting cement-base composite material Cracking strength and tensile strength, adhesive property be 1.51 times of conventional light guide cement-base composite material.Another the reason is that It joined epoxy resin and isocyanates in whipping process, concrete can be made to become more transparent, improve brittleness, enhancing cement base is multiple Effect is bonded between condensation material and optical fiber, improves cementitiousness and anti-stripping performance.
4. the durability of high-adhesion leaded light cement-base composite material of the present invention is greatly improved, this is because mixing The sulphate aluminium cement used during system can effectively prevent optical fiber and be corroded；Flyash has inhibiting effect to alkali, can Corrosion function to avoid alkali to optical fiber makes the active time of material be guaranteed；Dimethicone has been used after cutting polishing Guide-lighting cement matrix surface is handled with fluorocarbon polymer protective coating, this can increase cement-base composite material dense surface Degree, resistance to chemical corrosion, anti-carbonation properties effectively extend its Years Of Service.
Detailed description of the invention
The present invention will be further described below with reference to the drawings:
Fig. 1 is the flow diagram of high-adhesion leaded light cement-base composite material preparation method of the present invention；
Fig. 2 is high-adhesion leaded light cement-base composite material of the present invention and conventional light guide cement-base composite material Limit pulling capacity/load-displacement curve figure；In figure: real 1 represents 1 load-displacement curve figure of embodiment, and real 2 represent embodiment 2 Load-displacement curve figure, real 3 represent 3 load-displacement curve figure of embodiment, represent 1 load-displacement curve figure of comparative example to 1, 2 load-displacement curve figure of comparative example is represented to 2, represents 3 load-displacement curve figure of comparative example to 3；
Fig. 3 is the dynamic of high-adhesion leaded light cement-base composite material of the present invention and unused material surface inorganic agent Mould is played with age change curve；In figure: real 1, which represents 1 Dynamic Elastic Module of embodiment, represents embodiment 2 with age change curve, real 2 Dynamic Elastic Module represents 3 Dynamic Elastic Module of embodiment with age change curve with age change curve, real 3, and it is dynamic to represent comparative example 1 to 1 Mould is played with age change curve, 2 Dynamic Elastic Module of comparative example is represented with age change curve to 2, represents comparative example 3 to 3 and move Mould represents 5 Dynamic Elastic Module of comparative example with age change curve with age change curve, to 5.
Fig. 4 is the partial enlarged view of part A in Fig. 3, magnification ratio 2:1.
Fig. 5 is the partial enlarged view of part B in Fig. 3, magnification ratio 3:1.
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawing:
In traditional light guide concrete material between fiber optic materials and cement-based material there is bad adhesion, it is easy to fall off, Problem easy to crack, tensile strength is low is unfavorable for the long-term stress of structure.Simultaneously with the growth of age, in light guide concrete The exposed part of fiber optic materials it is perishable there is aging phenomenon, these are unfavorable for structure stress and cracking resistance.
The present invention in conventional light guide concrete between fiber optic materials and cement-base composite material there is bad adhesion, Problem easy to fall off, easy to crack, tensile strength is low, by the sulphur aluminium of styrene-butadiene emulsion, epoxy resin and isocyanates and special mixing Acid salt cement concrete is combined together, and optical fiber is handled with KH-570 silane coupling agent, using various reinforcing materials in different rulers The coupling humidification of degree spatially improves caking property, cracking resistance and peel performance between cement-base composite material and optical fiber. Firstly, the use of sulphate aluminium cement, can be effectively prevented optical fiber and corroded, the durability of guide-lighting cement-based material is improved； Secondly, using styrene-butadiene emulsion from it is thin see level promote sulphate aluminium cement aquation generate entringite and its in cement mortar Stability guarantees the stabilization adhesive property of cement-base composite material so that chemical stress value is stablized persistently；KH-570 silicon is used again The interface performance that optical fiber after alkane coupling agent treatment improves its basal body interface and gather materials with matrix on thin see, improves matrix With the adhesion strength between various constraint interfaces, the further adhesive property for promoting guide-lighting cement-base composite material；Finally, The addition of flyash has inhibiting effect to alkalinity, it is possible to reduce corrosion function of the alkali to optical fiber extends guide-lighting cement base composite wood The addition of the active time of material, epoxy resin and isocyanates can make cement-base composite material become more transparent, improve brittleness, Effect is bonded between enhancing cement-base composite material and optical fiber, improves cementitiousness and anti-stripping performance.Various components are from difference Scale space acts on and can make optical fiber and cement base in guide-lighting cement-based material using the coupling humidification between each component Adhesive property between material improves 51%, has expanded the application field of guide-lighting cement-base composite material, has wide exploitation Prospect.The art of this patent is exactly to be unfolded in this context.
For in unsticking between fiber optic materials and cement-based material in guide-lighting cement-base composite material, light guide concrete material The defects of fiber optic materials perishable aging, the present invention provide a kind of high-adhesion leaded light cement-base composite material to improve tradition Guide-lighting cement-base composite material in there is bad adhesions, easy to fall off, easy to crack, anti-between fiber optic materials and cement-based material The low problem of tensile strength.
High-adhesion leaded light cement-base composite material of the present invention includes self-stress aluminum sulfate cement, middle sand, thin Stone, water, flyash, epoxy resin, isocyanates, styrene-butadiene emulsion, Sika third generation poly carboxylic acid series super plasticizer, optical fiber and KH- 570 silane coupling agents, material protection agent are configured by dimethicone and fluorocarbon polymer.Wherein: the seif-citing rate sulphur Aluminate cement, middle sand, microlith, water, flyash, epoxy resin, isocyanates, styrene-butadiene emulsion, Sika third generation polycarboxylic-acid Super plasticizer mass ratio are as follows: 1:1.2:0.8:0.36:0.4:0.3:0.28:(5.3%~6.8%): 0.13%, KH-570 silane The concentration of coupling agent solution is 5%, fibre diameter 1mm.The mass ratio of dimethicone and fluorocarbon polymer in material protection agent For 1:0.9.
It effectively prevent optical fiber to be corroded using self-stress aluminum sulfate cement, improves the durable of guide-lighting cement-based material Property；Secondly, using styrene-butadiene emulsion from it is thin see entringite that level promotes self-stress aluminum sulfate cement aquation to generate and its Stability in cement mortar guarantees the stabilization adhesive property of cement-base composite material so that chemical stress value is stablized persistently；Again The secondary interface for being improved its basal body interface on thin seen with KH-570 silane coupling agent treated optical fiber and being gathered materials with matrix Performance improves the adhesion strength between matrix and various constraint interfaces, the further guide-lighting cement-base composite material of promotion Adhesive property；Finally, the addition of flyash, has inhibiting effect to alkalinity, it is possible to reduce corrosion function of the alkali to optical fiber, extension are led The addition of the active time of light cement-base composite material, epoxy resin and isocyanates can be such that cement-base composite material becomes more It is transparent, improve brittleness, enhances the effect that bonds between cement-base composite material and optical fiber, improve cementitiousness and anti-stripping performance. Various components act on from different scale spaces and utilize the coupling humidification between a component that guide-lighting cement base can be made compound Adhesive property in material between optical fiber and cement-based material improves.
Component contained by high-adhesion leaded light cement-base composite material of the present invention and its content are as follows:
Self-stress aluminum sulfate cement, middle sand, microlith, water, flyash, epoxy resin, isocyanates, styrene-butadiene emulsion, Sika third generation poly carboxylic acid series super plasticizer, optical fiber and KH-570 silane coupling agent；Material protection agent is by dimethicone and fluorine Carbon polymer is formulated；
Self-stress aluminum sulfate cement, middle sand, microlith, water, flyash, epoxy resin, isocyanates, styrene-butadiene emulsion, Sika third generation poly carboxylic acid series super plasticizer mass ratio are as follows:
1:1.2:0.8:0.36:0.4:0.3:0.28:(5.3%~6.8%): 0.13%；KH-570 silane coupling agent is molten The concentration of liquid is 5%, fibre diameter 1mm.The mass ratio of dimethicone and fluorocarbon polymer is 1:0.9 in material protection agent. Wherein:
The diameter of microlith is no more than 8mm；
The attenuation rate of optical fiber is lower than 250dB/km；
The solid content of styrene-butadiene emulsion is 50%, pH=7.7~10,35~150mPa.s of viscosity；
The step of manufacturing method of high-adhesion leaded light cement-base composite material of the present invention, is as follows:
1. optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2. will treated in step 1 that optical fiber is laid in mold in advance；Wherein the optical fiber in X-direction and Y-direction is being just It hands over, every layer of optical fiber parallel arrangement of Z-direction, the adjacent 2 optical fiber parallel spacings of X-direction are 3mm, and adjacent 2 optical fiber of Y-direction is parallel Spacing is 3mm, and every layer of optical fiber parallel spacing of Z-direction is 5mm；
3. self-stress aluminum sulfate cement, middle sand, microlith, flyash are blended in by the mass ratio of 1:1.2:0.8:0.4 In concrete mixer, uniform stirring 60s is at dry batch 1；
4. 90s is mixed in epoxy resin and isocyanates by the mass ratio of 0.3:0.28, become evenly dispersed Mixed liquor 1；
It is stirred evenly in the mixed liquor 1 to be formed simultaneously 5. the dry batch 1 to be formed will be stirred evenly in step 3 and be added in step 4 Stirring 120s forms new dry batch 2 together；
6. 0.36:(5.3%~6.8% in mass ratio): water, styrene-butadiene emulsion and third generation polycarboxylic-acid are surpassed modeling by 0.13% 30s is mixed in agent, becomes finely dispersed mixed liquor 2；
7. being added the mixed liquor 2 to be formed is stirred evenly in step 6 in the dry batch 2 being uniformly mixed in step 5, stirring 180s is stirred in machine into the cement-base composite material mixture of high-adhesion；
8. the cement-base composite material mixture of high-adhesion is uniformly poured into step 2 in the mold for having arranged optical fiber, It forms on a vibration table or using vibrating spear vibration 30s, demoulds and take out after maintenance 24 hours；
9. being 20 ± 3 DEG C and RH90% or more under common curing condition, conserve to 28d age, then by the water of hardening Cement-based composite material test block is cut with cutting machine, makes cross section perpendicular in fiber optic bundle direction and fiber optic point is made to expose 90% or more； The cutting plane of disruption finally is polished with sander, obtains high-adhesion leaded light cement-base composite material；
10. dimethicone and fluorocarbon polymer are configured to material protection agent by the mass ratio of 1:0.9, it is sprayed on On the cutting section of cement-base composite material test block, to extend the Years Of Service of high-adhesion leaded light cement-base composite material.
Embodiment 1
1. optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2. will treated in step 1 that optical fiber is laid in mold in advance；Wherein X, the optical fiber in Y-direction are orthogonal, the side Z To every layer of optical fiber it is arranged in parallel, the adjacent 2 optical fiber parallel spacings of X-direction are 3mm, and the adjacent 2 optical fiber parallel spacings of Y-direction are 3mm, every layer of optical fiber parallel spacing of Z-direction are 5mm；
3. by self-stress aluminum sulfate cement 664kg/m3, middle sand 796kg/m3, diameter be no more than 8mm microlith 531kg/ m3, flyash 265.6kg/m3It is blended in concrete mixer, uniform stirring 60s is at dry batch 1；
4. 90s is mixed in epoxy resin 199.2kg/m3 and isocyanates 185.9kg/m3, becomes and uniformly divide Scattered mixed liquor 1；
It is stirred evenly in the mixed liquor 1 to be formed simultaneously 5. the dry batch 1 to be formed will be stirred evenly in step 3 and be added in step 4 Stirring 120s forms new dry batch 2 together；
6. by water 239kg/m3, Sika third generation poly carboxylic acid series super plasticizer 0.86kg/m3, styrene-butadiene emulsion 45kg/m3Mixing 30s is stirred, finely dispersed mixed liquor 2 is become；
7. being added the mixed liquor 2 to be formed is stirred evenly in step 6 in the dry batch 2 being uniformly mixed in step 5, stirring 180s is stirred in machine into the cement-base composite material mixture of high-adhesion；
8. the cement-base composite material mixture of high-adhesion is uniformly poured into step 2 in the mold for having arranged optical fiber, It forms on a vibration table or using vibrating spear vibration 30s, demoulds and take out after maintenance 24 hours；
9. being 20 ± 3 DEG C, RH90% or more under common curing condition, conserve to 28d age, then by the cement of hardening Based composites test block is cut with cutting machine, makes cross section perpendicular in fiber optic bundle direction and fiber optic point is made to expose 90% or more；Most The cutting plane of disruption is polished with sander afterwards, obtains high-adhesion leaded light cement-base composite material；
10. by dimethicone 100kg/m3With fluorocarbon polymer 90kg/m3It is configured to material protection agent, is sprayed on On cutting section, extend the Years Of Service of high-adhesion leaded light cement-base composite material, using 15d as its Dynamic Elastic Module of period measurement Afterwards, its limit pulling capacity is 1468N in pull-out test.
Embodiment 2
1. optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2. will treated in step 1 that optical fiber is laid in mold in advance；Wherein X, the orthogonal cloth of optical fiber in Y-direction If every layer of optical fiber of Z-direction is arranged in parallel, the adjacent 2 optical fiber parallel spacings of X-direction are 3mm, and adjacent 2 optical fiber of Y-direction is parallel Spacing is 3mm, and every layer of optical fiber parallel spacing of Z-direction is 5mm；
3. by self-stress aluminum sulfate cement 664kg/m3, middle sand 796kg/m3, diameter be no more than 8mm microlith 531kg/ m3, flyash 265.6kg/m3It is blended in concrete mixer, uniform stirring 60s is at dry batch 1；
4. 90s is mixed in epoxy resin 199.2kg/m3 and isocyanates 185.9kg/m3, becomes and uniformly divide Scattered mixed liquor 1；
It is stirred evenly in the mixed liquor 1 to be formed simultaneously 5. the dry batch 1 to be formed will be stirred evenly in step 3 and be added in step 4 Stirring 120s forms new dry batch 2 together；
6. by water 239kg/m3, Sika third generation poly carboxylic acid series super plasticizer 0.86kg/m3, styrene-butadiene emulsion 35kg/m3Mixing 30s is stirred, finely dispersed mixed liquor 2 is become；
7. being added the mixed liquor 2 to be formed is stirred evenly in step 6 in the dry batch 2 being uniformly mixed in step 5, stirring 180s is stirred in machine into the cement-base composite material mixture of high-adhesion；
8. the cement-base composite material mixture of high-adhesion is uniformly poured into step 2 in the mold for having arranged optical fiber, It forms on a vibration table or using vibrating spear vibration 30s, demoulds and take out after maintenance 24 hours；
9. being 20 ± 3 DEG C and RH90% or more under common curing condition, conserve to 28d age, then by the water of hardening Cement-based composite material test block is cut with cutting machine, makes cross section perpendicular in fiber optic bundle direction and fiber optic point is made to expose 90% or more； The cutting plane of disruption finally is polished with sander, obtains high-adhesion leaded light cement-base composite material；
10. pressing dimethicone 100kg/m3With fluorocarbon polymer 90kg/m3It is configured to material protection agent, is sprayed on On cutting section, extend the Years Of Service of high-adhesion leaded light cement-base composite material.Using 15d as its Dynamic Elastic Module of period measurement Afterwards, its limit pulling capacity is 1425N in pull-out test.
Embodiment 3
1. optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2. will treated in step 1 that optical fiber is laid in mold in advance；Wherein X, the orthogonal cloth of optical fiber in Y-direction If every layer of optical fiber of Z-direction is arranged in parallel, the adjacent 2 optical fiber parallel spacings of X-direction are 3mm, and adjacent 2 optical fiber of Y-direction is parallel Spacing is 3mm, and every layer of optical fiber parallel spacing of Z-direction is 5mm；
3. by self-stress aluminum sulfate cement 664kg/m3, middle sand 796kg/m3, diameter be no more than 8mm microlith 531kg/ m3, flyash 265.6kg/m3It is blended in concrete mixer, uniform stirring 60s is at dry batch 1；
4. 90s is mixed in epoxy resin 199.2kg/m3 and isocyanates 185.9kg/m3, becomes and uniformly divide Scattered mixed liquor 1；
It is stirred evenly in the mixed liquor 1 to be formed simultaneously 5. the dry batch 1 to be formed will be stirred evenly in step 3 and be added in step 4 Stirring 120s forms new dry batch 2 together；
6. by water 239kg/m3, Sika third generation poly carboxylic acid series super plasticizer 0.86kg/m3, styrene-butadiene emulsion 40kg/m3Mixing 30s is stirred, finely dispersed mixed liquor 2 is become；
7. it is added the mixed liquor 2 to be formed is stirred evenly in step 6 in the new dry batch 2 being uniformly mixed in step 5, 180s is stirred in blender into the cement-base composite material mixture of high-adhesion；
8. the cement-base composite material mixture of high-adhesion is uniformly poured into step 2 in the mold for having arranged optical fiber, It forms on a vibration table or using vibrating spear vibration 30s, demoulds and take out after maintenance 24 hours；
9. being 20 ± 3 DEG C, RH90% or more under common curing condition, conserve to 28d age, then by the cement of hardening Based composites test block is cut with cutting machine, makes cross section perpendicular in fiber optic bundle direction and fiber optic point is made to expose 90% or more；Most The cutting plane of disruption is polished with sander afterwards, obtains high-adhesion leaded light cement-base composite material；
10. by dimethicone 100kg/m3With fluorocarbon polymer 90kg/m3It is configured to material protection agent, is sprayed on On cutting section, extend the Years Of Service of high-adhesion leaded light cement-base composite material.Using 15d as its Dynamic Elastic Module of period measurement Afterwards, its limit pulling capacity is 1490N in pull-out test.
Comparative example 1
1. optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2. will treated in step 1 that optical fiber is laid in mold in advance；Wherein X, the orthogonal cloth of optical fiber in Y-direction If every layer of optical fiber of Z-direction is arranged in parallel, the adjacent 2 optical fiber parallel spacings of X-direction are 3mm, and adjacent 2 optical fiber of Y-direction is parallel Spacing is 3mm, and every layer of optical fiber parallel spacing of Z-direction is 5mm；
3. by ordinary portland cement 664kg/m3, middle sand 796kg/m3, diameter be no more than 8mm microlith 531kg/m3, powder Coal ash 265.6kg/m3It is blended in concrete mixer, uniform stirring 60s is at dry batch 1；
4. 90s is mixed in epoxy resin 199.2kg/m3 and isocyanates 185.9kg/m3, becomes and uniformly divide Scattered mixed liquor 1；
It is stirred evenly in the mixed liquor 1 to be formed simultaneously 5. the dry batch 1 to be formed will be stirred evenly in step 3 and be added in step 4 Stirring 120s forms new dry batch 2 together
6. by water 239kg/m3, Sika third generation poly carboxylic acid series super plasticizer 0.86kg/m3, styrene-butadiene emulsion 40kg/m3Mixing 30s is stirred, finely dispersed mixed liquor 2 is become；
7. it is added the mixed liquor 2 to be formed is stirred evenly in step 6 in the new dry batch 2 being uniformly mixed in step 5, 180s is stirred in blender into the cement-base composite material mixture of high-adhesion；
8. the cement-base composite material mixture of high-adhesion is uniformly poured into step 2 in the mold for having arranged optical fiber, It forms on a vibration table or using vibrating spear vibration 30s, demoulds and take out after maintenance 24 hours；
9. being 20 ± 3 DEG C, RH90% or more under common curing condition, conserve to 28d age, then by the cement of hardening Based composites test block is cut with cutting machine, makes cross section perpendicular in fiber optic bundle direction and fiber optic point is made to expose 90% or more；Most The cutting plane of disruption is polished with sander afterwards, obtains high-adhesion leaded light cement-base composite material.
10. pressing dimethicone 100kg/m3With fluorocarbon polymer 90kg/m3It is configured to material protection agent, is sprayed on On cutting section, extend the Years Of Service of high-adhesion leaded light cement-base composite material.Using 15d as its Dynamic Elastic Module of period measurement Afterwards, its limit pulling capacity is 973N in pull-out test.
Comparative example 2
1. optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2. will treated in step 1 that optical fiber is laid in mold in advance；Wherein X, the orthogonal cloth of optical fiber in Y-direction If every layer of optical fiber of Z-direction is arranged in parallel, the adjacent 2 optical fiber parallel spacings of X-direction are 3mm, and adjacent 2 optical fiber of Y-direction is parallel Spacing is 3mm, and every layer of optical fiber parallel spacing of Z-direction is 5mm；
3. by self-stress aluminum sulfate cement 664kg/m3, middle sand 796kg/m3, diameter be no more than 8mm microlith 531kg/ m3, flyash 265.6kg/m3It is blended in concrete mixer, uniform stirring 60s is at dry batch 1；
4. 90s is mixed in epoxy resin 199.2kg/m3 and isocyanates 185.9kg/m3, becomes and uniformly divide Scattered mixed liquor 1；
It is stirred evenly in the mixed liquor 1 to be formed simultaneously 5. the dry batch 1 to be formed will be stirred evenly in step 3 and be added in step 4 Stirring 120s forms new dry batch 2 together；
6. by water 239kg/m3, Sika third generation poly carboxylic acid series super plasticizer 0.86kg/m330s is mixed, becomes Finely dispersed mixed liquor 2；
7. being added the mixed liquor 2 to be formed is stirred evenly in step 6 in the dry batch 2 being uniformly mixed in step 5, stirring 180s is stirred in machine into the cement-base composite material mixture of high-adhesion；
8. the cement-base composite material mixture of high-adhesion is uniformly poured into step 2 in the mold for having arranged optical fiber, It forms on a vibration table or using vibrating spear vibration 30s, demoulds and take out after maintenance 24 hours；
9. being 20 ± 3 DEG C, RH90% or more under common curing condition, conserve to 28d age, then by the cement of hardening Based composites test block is cut with cutting machine, makes cross section perpendicular in fiber optic bundle direction and fiber optic point is made to expose 90% or more；Most The cutting plane of disruption is polished with sander afterwards, obtains high-adhesion leaded light cement-base composite material；
10. by dimethicone 100kg/m3With fluorocarbon polymer 90kg/m3It is configured to material protection agent, is sprayed on On cutting section, extend the Years Of Service of high-adhesion leaded light cement-base composite material.Using 15d as its Dynamic Elastic Module of period measurement Afterwards, its limit pulling capacity is 1003N in pull-out test.
Comparative example 3
1. optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2. will treated in step 1 that optical fiber is laid in mold in advance；Wherein X, the orthogonal cloth of optical fiber in Y-direction If every layer of optical fiber of Z-direction is arranged in parallel, the adjacent 2 optical fiber parallel spacings of X-direction are 3mm, and adjacent 2 optical fiber of Y-direction is parallel Spacing is 3mm, and every layer of optical fiber parallel spacing of Z-direction is 5mm；
3. by self-stress aluminum sulfate cement 664kg/m3, middle sand 796kg/m3, diameter be no more than 8mm microlith 531kg/ m3, flyash 265.6kg/m3It is blended in concrete mixer, uniform stirring 60s is at dry batch 1；
4. 90s is mixed in epoxy resin 199.2kg/m3 and isocyanates 185.9kg/m3, becomes and uniformly divide Scattered mixed liquor 1；
It is stirred evenly in the mixed liquor 1 to be formed simultaneously 5. the dry batch 1 to be formed will be stirred evenly in step 3 and be added in step 4 Stirring 120s forms new dry batch 2 together；
6. by water 239kg/m3, Sika third generation poly carboxylic acid series super plasticizer 0.86kg/m3, styrene-butadiene emulsion 20kg/m3Mixing 30s is stirred, finely dispersed mixed liquor 2 is become；
7. being added the mixed liquor 2 to be formed is stirred evenly in step 6 in the dry batch 2 being uniformly mixed in step 5, stirring 180s is stirred in machine into the cement-base composite material mixture of high-adhesion；
8. the cement-base composite material mixture of high-adhesion is uniformly poured into step 2 in the mold for having arranged optical fiber, It forms on a vibration table or using vibrating spear vibration 30s, demoulds and take out after maintenance 24 hours；
9. being 20 ± 3 DEG C, RH90% or more under common curing condition, conserve to 28d age, then by the cement of hardening Based composites test block is cut with cutting machine, makes cross section perpendicular in fiber optic bundle direction and fiber optic point is made to expose 90% or more；Most The cutting plane of disruption is polished with sander afterwards, obtains high-adhesion leaded light cement-base composite material；
10. by dimethicone 100kg/m3With fluorocarbon polymer 90kg/m3It is configured to material protection agent, is sprayed on On cutting section, extend the Years Of Service of high-adhesion leaded light cement-base composite material.Using 15d as its Dynamic Elastic Module of period measurement Afterwards, its limit pulling capacity is 1127N in pull-out test.
Comparative example 4
1. optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2. will treated in step 1 that optical fiber is laid in mold in advance；Wherein X, the orthogonal cloth of optical fiber in Y-direction If every layer of optical fiber of Z-direction is arranged in parallel, the adjacent 2 optical fiber parallel spacings of X-direction are 3mm, and adjacent 2 optical fiber of Y-direction is parallel Spacing is 3mm, and every layer of optical fiber parallel spacing of Z-direction is 5mm；
3. by self-stress aluminum sulfate cement 664kg/m3, middle sand 796kg/m3, diameter be no more than 8mm microlith 531kg/ m3, flyash 265.6kg/m3It is blended in concrete mixer, uniform stirring 60s is at dry batch 1；
4. 90s is mixed in epoxy resin 199.2kg/m3 and isocyanates 185.9kg/m3, becomes and uniformly divide Scattered mixed liquor 1；
It is stirred evenly in the mixed liquor 1 to be formed simultaneously 5. the dry batch 1 to be formed will be stirred evenly in step 3 and be added in step 4 Stirring 120s forms new dry batch 2 together；
6. by water 239kg/m3, Sika third generation poly carboxylic acid series super plasticizer 0.86kg/m3, styrene-butadiene emulsion 50kg/m3Mixing 30s is stirred, finely dispersed mixed liquor 2 is become；
7. being added the mixed liquor 2 to be formed is stirred evenly in step 6 in the dry batch 2 being uniformly mixed in step 5, stirring After stirring 180s in machine, the mobility of stirring thing is unable to satisfy always, this makes the working performance of concrete poor.
Comparative example 5
1. optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2. will treated in step 1 that optical fiber is laid in mold in advance；Wherein X, the orthogonal cloth of optical fiber in Y-direction If every layer of optical fiber of Z-direction is arranged in parallel, the adjacent 2 optical fiber parallel spacings of X-direction are 3mm, and adjacent 2 optical fiber of Y-direction is parallel Spacing is 3mm, and every layer of optical fiber parallel spacing of Z-direction is 5mm；
3. by self-stress aluminum sulfate cement 664kg/m3, middle sand 796kg/m3, diameter be no more than 8mm microlith 531kg/ m3, flyash 265.6kg/m3It is blended in concrete mixer, uniform stirring 60s is at dry batch 1；
4. 90s is mixed in epoxy resin 199.2kg/m3 and isocyanates 185.9kg/m3, becomes and uniformly divide Scattered mixed liquor 1；
It is stirred evenly in the mixed liquor 1 to be formed simultaneously 5. the dry batch 1 to be formed will be stirred evenly in step 3 and be added in step 4 Stirring 120s forms new dry batch 2 together；
6. by water 239kg/m3, Sika third generation poly carboxylic acid series super plasticizer 0.86kg/m3, styrene-butadiene emulsion 40kg/m3Mixing 30s is stirred, finely dispersed mixed liquor 2 is become；
7. being added the mixed liquor 2 to be formed is stirred evenly in step 6 in the dry batch 2 being uniformly mixed in step 5, stirring 180s is stirred in machine into the cement-base composite material mixture of high-adhesion；
8. the cement-base composite material mixture of high-adhesion is uniformly poured into step 2 in the mold for having arranged optical fiber, It forms on a vibration table or using vibrating spear vibration 30s, demoulds and take out after maintenance 24 hours；
9. being 20 ± 3 DEG C, RH90% or more under common curing condition, conserve to 28d age, then by the cement of hardening Based composites test block is cut with cutting machine, makes cross section perpendicular in fiber optic bundle direction and fiber optic point is made to expose 90% or more；Most The cutting plane of disruption is polished with sander afterwards, high-adhesion leaded light cement-base composite material is obtained, measures it by a cycle of 15d Dynamic Elastic Module.
Pass through three embodiments and the available following main conclusions of five comparative examples:
1. refering to styrene-butadiene emulsion in Fig. 2 embodiment 1, embodiment 2, embodiment 3 and comparative example 2, comparative example 3, comparative example 4 Content is in 45kg/m3、35kg/m3、40kg/m3、0kg/m3、20kg/m3、50kg/m3The guide-lighting cement base of high bonding of preparation is compound The draft of material has carried out experimental study and comparative analysis, and as a result 3 the high of embodiment preparation bond guide-lighting cement base Composite material all has higher pulling capacity and adhesive property.When styrene-butadiene emulsion content is higher than 45kg/m3When, institute's mixing cement base The working performance of composite material is poor, when styrene-butadiene emulsion content is lower than 35kg/m3When, it is compound that institute's mixing height bonds guide-lighting cement base The draft of material reduces, it was demonstrated that the high match ratio for bonding guide-lighting cement-base composite material proposed by the present invention and preparation side Method is reliable；
1. finding that the present invention proposes that height bonds the more common silicic acid of guide-lighting cement-base composite material refering in Fig. 2 real 3 and to 1 The guide-lighting cement-base composite material of salt cement material production has stronger limit pulling capacity and adhesive property, and improves 1.51 Times.
2. refering in Fig. 3 real 1 and to 5, find the present invention propose it is high bond guide-lighting cement-base composite material protective agent have compared with Strong protective effect can delay the high Dynamic Elastic Module loss for bonding guide-lighting cement-base composite material, and after 30 periods, embodiment 1 is made The high Dynamic Elastic Module for bonding leaded light cement-base composite material of work is 7662MPa, and the high leaded light cement base that bonds that comparative example 5 makes is answered The Dynamic Elastic Module of condensation material is 6524Mpa.

Claims (1)

1. a kind of high-adhesion leaded light cement-base composite material, which is characterized in that the high-adhesion leaded light cement base is compound Material include self-stress aluminum sulfate cement, middle sand, microlith, water, flyash, epoxy resin, isocyanates, styrene-butadiene emulsion, Sika third generation poly carboxylic acid series super plasticizer, optical fiber and KH-570 silane coupling agent；
The self-stress aluminum sulfate cement, middle sand, microlith, water, flyash, epoxy resin, isocyanates, styrene-butadiene emulsion, The mass ratio of Sika third generation poly carboxylic acid series super plasticizer are as follows: 1:1.2:0.8:0.36:0.4:0.3:0.28:(5.3%~ 6.8%): 0.13%；
The concentration of KH-570 silane coupler solution is 5%；
The diameter of the microlith is no more than 8mm；The attenuation rate of fibre diameter 1mm, optical fiber are lower than 250dB/km；
The solid content of styrene-butadiene emulsion is 50%, pH=7.7~10,35~150mPa.s of viscosity；
The high-adhesion leaded light cement-base composite material also uses material protection agent, material protection agent by dimethicone and Fluorocarbon polymer configures, and the mass ratio of dimethicone and fluorocarbon polymer is 1:0.9 in material protection agent；
The step of manufacturing method of the high-adhesion leaded light cement-base composite material, is as follows:
1) optical fiber is immersed in the solution for the KH-570 silane coupling agent that concentration is 5%, so that optical fiber surface moistens comprehensively；
2) will in step 1) treated fiber deployment in mold；Optical fiber wherein on the direction XY is orthogonal, and X-direction optical fiber is flat Row arrangement, Y-direction optical fiber parallel arrangement, every layer of optical fiber parallel arrangement of Z-direction；That is: the adjacent 2 optical fiber parallel spacings of X-direction For 3mm, the adjacent 2 optical fiber parallel spacings of Y-direction are 3mm, and every layer of optical fiber parallel spacing of Z-direction is 5mm；
3) self-stress aluminum sulfate cement, middle sand, microlith, flyash are blended in coagulation by the mass ratio of 1:1.2:0.8:0.4 In native blender, uniform stirring 60s is at dry batch 1；
4) 90s is mixed in epoxy resin and isocyanates by the mass ratio of 0.3:0.28, become evenly dispersed Mixed liquor 1；
5) it will stir evenly in step 3) and be stirred evenly in the mixed liquor 1 to be formed simultaneously in the dry batch 1 to be formed addition step 4) Stirring 120s forms dry batch 2 together；
6) 0.36:(5.3%~6.8% is pressed): 0.13% mass ratio is super plasticized by water, styrene-butadiene emulsion and third generation polycarboxylic-acid 30s is mixed in agent, becomes finely dispersed mixed liquor 2；
7) mixed liquor 2 to be formed will be stirred evenly in step 6) to be added in the dry batch 2 being uniformly mixed in step 5), in blender The middle 180s that stirs is at the cement-base composite material mixture of high-adhesion；
8) the cement-base composite material mixture of high-adhesion is uniformly poured into step 2) in the mold for having arranged optical fiber, is being shaken It is formed on dynamic platform or using vibrating spear vibration 30s, demoulds and take out after maintenance 24 hours；
9) it is 20 ± 3 DEG C and RH90% or more under common curing condition, conserves to 28d age, then by the cement base of hardening Composite material test block is cut with cutting machine, makes cross section perpendicular in fiber optic bundle direction and fiber optic point is made to expose 90% or more；Finally The cutting plane of disruption is polished with sander, obtains high-adhesion leaded light cement-base composite material；
10) dimethicone and fluorocarbon polymer are configured to material protection agent by the mass ratio of 1:0.9, material protection agent is sprayed It is coated on the cutting section of cement-base composite material test block.
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CN102166780A (en) * 2011-01-19 2011-08-31 北京工业大学 Method for preparing light-transmitting concrete by spinning optical fiber technology
CN102758496A (en) * 2012-07-30 2012-10-31 中建商品混凝土有限公司 Method for preparing light-transmitting concrete
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