CN102848451B - Method for producing light transmitting concrete with light transmitting mode design - Google Patents
Method for producing light transmitting concrete with light transmitting mode design Download PDFInfo
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- CN102848451B CN102848451B CN201210258969.XA CN201210258969A CN102848451B CN 102848451 B CN102848451 B CN 102848451B CN 201210258969 A CN201210258969 A CN 201210258969A CN 102848451 B CN102848451 B CN 102848451B
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Abstract
The invention discloses a method for producing light transmitting concrete with light transmitting mode design and belongs to the field of novel building materials. Plastic optical fiber with transmittance of more than 90% is used, and the diameter of the optical fiber is in a range from 0.5mm to 1.5mm. Firstly, the optical fiber is spun into optical fiber cloth, all fiber monofilaments in the optical fiber cloth are arranged in parallel in a warp direction or a weft direction, distances among the fiber can be adjusted and controlled to be in a range from 3mm to 6mm, and cotton yarn is used for fixing in the warp direction or the weft direction. Then, the surface of the optical fiber is processed by a coupling agent, the optical fiber cloth is fixed in a test die in accordance the design, high-liquidity high-strength cement mortar is poured, the cement mortar is cut, ground and polished after being hardened, and the light transmitting concrete is obtained. By the aid of the light transmitting concrete, the designed light transmitting mode and effect are achieved, and the volume fraction of the optical fiber in a block can be reduced to 2-5%. The light transmitting concrete has wide application prospects in fields such as promotion of energy-saving building illumination and construction decoration and is a novel third generation light transmitting cement concrete material.
Description
Technical field
The invention belongs to New Building Materials technical field.Be specifically related to a kind of high light transmittance, high strength, the preparation method of non-light tight concrete cheaply.Compared with second generation transparent cement-based material, it is simple that this kind of cement based light transmissive material has preparation technology, and fiber orientation is effective, cost is low, optical fiber volume volume can be reduced to 2～5%, light transmission is well stable, and the feature such as high strength, is promoting Construction Lighting Economization on Energy, building decoration field to have broad application prospects.
Background technology
Although the existing relevant report about cement based non-light tight concrete at present, but little about the concrete material composition of cement based light transmissive material and preparation technology's report, know: 1) select nature of glass multimode fibre, require coating on optical fiber surface, and select coupling agent to carry out pretreatment to optical fiber surface.Optical fiber directly through being 2～300 μ m, a large amount of fibre bundles is imbedded in cement matrix material in the mode being arranged in parallel, and direction is consistent with light transmission direction, and pass and the special-effect such as look like to realize cement concrete material printing opacity as the conductor of transmission ray, the volume fraction of optical fiber in building block is 5～30%.2) fiber optic materials is woven into 3D or 2D fabric by multiple-axial warp knitting machine.By parallel being laid in die trial of 2D optical fiber fabric delamination of having weaved, after maybe the 3D optical fiber fabric with multilayer space structure of having weaved being lifted and launching and fixed, then pour into a mould fresh cement paste, then plug and pound closely knit with vibrating spear.Finally hardened cement is tried to body cutting machine and cut, then by cutting section sanding and polishing, thereby transparent cement-based material obtained.
Although above-mentioned non-light tight concrete material also can be realized the light transmission of concrete material and the locating effect of optical fiber, from material composition and preparation method's analysis, also there is following problem, affect performance and the application of this material, specific as follows:
1) material cost is higher: optical fiber volume volume is up to 30% left and right, causes the manufacturing cost of transparent cement-based material higher.
2) to prepare difficulty large for 3D or 2D fabric: because optical fiber surface is smooth, section is rounded, and material is more crisp, is difficult for colligation stationary positioned when braiding, is woven into 3D or 2D fabric has certain difficulty by multiple-axial warp knitting machine.
3) translucent effect of material and the ornamental card that is difficult to ensure: the effect that the translucent effect that parallel pencil nature of glass fibre bundle forms is only piled up for fiber, is not easy to be designed to special graph; Optical fiber in 3D or 2D fabric is easily sent out bending, and the dislocation of sliding, even skids off, and is difficult to reach the locating effect of expection, and then is difficult to give full play to the transmittancy of optical fiber, causes the light transmission efficiency of material to reduce and decorative effect variation.
4) intensity of material is lower, durability is poor: owing to there being warp-wise and broadwise close situation of paving row optical fiber simultaneously in 3D and 2D fabric, greatly improved cement matrix discontinuity of material, thereby greatly reduced the intensity of material.And select nature of glass multimode fibre can be subject to the corrosion of hydrolysis product of cement calcium hydroxide, durability can not ensure.
Summary of the invention
1. preparation has the method for the non-light tight concrete of design printing opacity form, it is characterized in that step is as follows:
1) preparation has the upper flow regime high strength cement mortar of following feature:
Binder Materials is the portland-type cement of strength grade >=32.5, and admixture accounts for 20%～30% breeze of Binder Materials gross weight; The polycarboxylate water-reducer that water reducer adopts water-reducing rate to be greater than 15%; And to adopt defoamer, volume be 0.2%～0.5% of cement, water, breeze and the gross weight of gathering materials simultaneously;
Gather materials: the quartz sand that particle diameter scope is 0.06～1.18mm, the weight ratio of quartz sand and Binder Materials is 0.5～1;
The weight ratio of water consumption and Binder Materials is controlled at 0.3～0.40; More than the denseness that makes newly to mix cement mortar by adjusting water reducer volume reaches 15cm, more than the 28 days compression strength of cement mortar of mixing breeze reaches 50MPa;
2) preparation has the optical fiber fabric of following feature:
The plastic optical fiber that optical fiber adopts light transmittance to be greater than 90%, diameter is 0.5～1.5mm; First be single layer optical fiber cloth optical fiber weaving, in optical fiber cloth, each fibre single thread warp-wise or broadwise are arranged in parallel, and the distance between optical fiber is controlled at 3～6mm, and broadwise or warp-wise are fixed with cotton yarn; Then use coupling agent treatment optical fiber surface, then optical fiber cloth is fixed in mould according to the mode of design;
3) by one of following two kinds of modes, optical fiber fabric is located in mould:
Mould is the die trial of cuboid uncovered wood, in the direction in uncovered one end perpendicular to two long limits, and the reinforcing bar that is arranged in parallel, and reinforcing bar is fixed by nail gun; According to moulding winding optical fiber cloth, below optical fiber cloth, place reinforcing bar, lean on reinforcing bar Action of Gravity Field by stretching optical fiber cloth;
Mould is the die trial of cuboid uncovered wood, hammers into reinforcing bar and by its reinforcing on base plate according to required figure; Then according to moulding, winding optical fiber cloth on reinforcing bar;
4) moulding of non-light tight concrete
After optical fiber cloth fixedly completes, in die trial, fill and newly mix above-mentioned upper flow regime high strength cement mortar, test specimen after maintenance to 28 day, is cut hardened cement mortar body under moist environment with cutting machine, by cutting section sanding and polishing and with organic silicone oil spraying, thereby obtain non-light tight concrete.
The present invention can address the above problem well, innovates from material composition and the each angle of preparation technology, and major advantage is as follows:
1) material cost reduction, durability improve: optical fiber volume volume, only up to 5% left and right, more than 2 times, has significantly reduced manufacturing cost than original Techniques For Reducing.Optical fiber adopts plastic optical fiber, has greatly improved the corrosivity of opposing calcium hydroxide.
2) one-way single-layer optical fiber fabric is prepared difficulty reduction: adopt plain weave, optical fiber weaving is become to one-way single-layer optical fiber fabric, and easy to operate, be difficult for misdrawing.
3) fiber orientation effect significantly improves: the warp-wise (or broadwise) of one-way single-layer optical fiber fabric only has one side to use optical fiber, uses the fibers such as cotton yarn on one side in addition, and consolidation is firm more to make fiber orientation, and not flexible dislocation is extracted out.Optical fiber cloth being wound in the process of moulding on reinforcing bar, also ensure convenience and the accuracy of moulding process, improved locating effect simultaneously.And institute joins upper flow regime, self-compaction cement mortar and do not need to vibrate, can not affect the locating effect of optical fiber after building.
4) translucent effect of material significantly improves: in the case of the locating effect of optical fiber improves, and fiber orientation parallel arrangement, luminous energy loss is low, and light transmission is given full play to, thereby improves the translucent effect of material.
5) realizability of designing material decorative effect: can carry out changeable moulding according to required decorative effect, simple to operate realization, has improved the artistic value of material.
6) intensity of material significantly improves: the use of one-way single-layer optical fiber fabric, improve the uniformity of original cement matrix, and the reinforcement effect of fiber to matrix in addition, thus improve the intensity of material.
By the innovation of above-mentioned material, preparation technology and forming method, can prepare novel non-light tight concrete material, compared with second generation transparent cement-based material, have that translucent effect is good, preparation technology is convenient, intensity advantages of higher, is novel third generation transparent cement concrete material.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the ground plan of die trial of the present invention.
Detailed description of the invention
In examples of implementation, the raw material of mortar composition is as follows respectively:
Mortar 1: Binder Materials is that the ChangPing, Beijing City gold and jade of the P.O32.5 portland cement compound 25% of weight ratio 75% carrys out the S95 level breeze that mineral powder plant is produced, and water-cement ratio is 0.35; The particle size range of quartz sand is 0.06～1.18mm, and the mass ratio of quartz sand and Binder Materials is 0.75; The volume of the P764 type powder defoamer that Shenzhen Hai Run chemical company produces is 0.35% of material gross mass.The not fluidity of gram F0X-8H type powder polycarboxylate water-reducer adjustment cement mortar of Suzhou that admixture water-reducing rate is greater than 15%, makes its denseness reach 16cm; 28 days compression strength of mortar has reached 58MPa.
Mortar 2: Binder Materials comprises cement and breeze, cement is P.O32.5 portland cement, and breeze is that ChangPing, Beijing City gold and jade carrys out the S95 level breeze that mineral powder plant is produced, and the mass ratio of cement and breeze is 7:3; Water-cement ratio is 0.3; The particle size range of quartz sand is 0.06～1.18mm, and the mass ratio of quartz sand and Binder Materials is 0.5; The volume of the P764 type powder defoamer that Shenzhen Hai Run chemical company produces is 0.2% of material gross mass.The not fluidity of gram F0X-8H type powder polycarboxylate water-reducer adjustment cement mortar of Suzhou that admixture water-reducing rate is greater than 15%, makes its denseness reach 15cm; 28 days compression strength of mortar has reached 66MPa.
Mortar 3: Binder Materials comprises cement and breeze, cement is P.O32.5 portland cement, and breeze is that ChangPing, Beijing City gold and jade carrys out the S95 level breeze that mineral powder plant is produced, and the mass ratio of cement and breeze is 8:2; Water-cement ratio is 0.4; The particle size range of quartz sand is 0.06～1.18mm, and the mass ratio of quartz sand and Binder Materials is 1; The volume of the P764 type powder defoamer that Shenzhen Hai Run chemical company produces is 0.5% of material gross mass.The not fluidity of gram F0X-8H type powder polycarboxylate water-reducer adjustment cement mortar of Suzhou that admixture water-reducing rate is greater than 15%, makes its denseness reach 17cm; 28 days compression strength of mortar has reached 52MPa.
Mortar 4: Binder Materials comprises cement and breeze, cement is P.O42.5 portland cement, and breeze is that ChangPing, Beijing City gold and jade carrys out the S95 level breeze that mineral powder plant is produced, and the mass ratio of cement and breeze is 7.5:2.5; Water-cement ratio is 0.35; The particle size range of quartz sand is 0.06～1.18mm, and the mass ratio of quartz sand and Binder Materials is 0.75; The volume of the P764 type powder defoamer that Shenzhen Hai Run chemical company produces is 0.3% of material gross mass.The not fluidity of gram F0X-8H type powder polycarboxylate water-reducer adjustment cement mortar of Suzhou that admixture water-reducing rate is greater than 15%, makes its denseness reach 16cm; 28 days compression strength of mortar has reached 64MPa.
● fiber type is PMMA matter optical fiber, and fabric comprises following several types:
Fabric 1: fibre diameter is 0.5mm, single layer optical fiber cloth, in optical fiber cloth, each fibre single thread warp-wise is arranged in parallel, and the distance between optical fiber is controlled at 3mm, and broadwise is fixed with cotton yarn, uses coupling agent treatment optical fiber surface.
Fabric 2: fibre diameter is 0.75mm, single layer optical fiber cloth, in optical fiber cloth, each fibre single thread warp-wise is arranged in parallel, and the distance between optical fiber is controlled at 4mm, and broadwise is fixed with cotton yarn, uses coupling agent treatment optical fiber surface.
Fabric 3: fibre diameter is 1.5mm, single layer optical fiber cloth, in optical fiber cloth, each fibre single thread broadwise is arranged in parallel, and the distance between optical fiber is controlled at 6mm, and warp-wise is fixed with cotton yarn, uses coupling agent treatment optical fiber surface.
Fabric 4: fibre diameter is 1mm, single layer optical fiber cloth, in optical fiber cloth, each fibre single thread broadwise is arranged in parallel, and the distance between optical fiber is controlled at 5mm, and warp-wise is fixed with cotton yarn, uses coupling agent treatment optical fiber surface.
● the processing method of the locate mode of optical fiber fabric in mould and test specimen is as follows:
Structural form according to specific die trial 1: adopt the die trial of cuboid uncovered wood, in the direction in uncovered one end perpendicular to two long limits, according to the spacing designing (as the 10mm) reinforcing bar that is arranged in parallel, and be fixed by nail gun.Winding optical fiber cloth, optical fiber cloth below between every adjacent two reinforcing bars is put a reinforcing bar that is parallel to square bar and is used for cloth stretching, this reinforcing bar is because on the center line of Action of Gravity Field in adjacent two reinforcing bars in top, and the optical fiber cloth facade being so wound around becomes regular triangle.In addition, also can make optical fiber cloth facade become regular trapezoidal or rectangle etc. by changing the fixing reinforcing bar in top and the position of bottom Chui La reinforcing bar.
Structural form according to specific die trial 2: hammer into reinforcing bar and be fixed according to design configuration on base plate.Then according to required moulding (as rectangle, triangle etc.), winding optical fiber cloth.The optical fiber cloth plane being so wound around can become various complicated shapes.
Finally cement slurry will be filled in die trial.After maintenance 28 days, by the cutting of hardened cement mortar, polishing, polishing and with organic silicone oil spraying, thereby obtain non-light tight concrete.
Test index is the test specimen compression strength of 28 days, wettability and light transmittance.The detection of light transmittance adopts AAS test.
The test result of embodiment is as shown in table 1.
The combined effect of the various non-light tight concretes of table 1 and performance
Claims (1)
1. preparation has the method for the non-light tight concrete of design printing opacity form, it is characterized in that step is as follows:
1) preparation has the upper flow regime high strength cement mortar of following feature:
Binder Materials is the portland-type cement of strength grade >=32.5, and admixture accounts for 20%～30% breeze of Binder Materials gross weight; The polycarboxylate water-reducer that water reducer adopts water-reducing rate to be greater than 15%; And to adopt defoamer, volume be 0.2%～0.5% of cement, water, breeze and the gross weight of gathering materials simultaneously;
Gather materials: the quartz sand that particle diameter scope is 0.06～1.18mm, the weight ratio of quartz sand and Binder Materials is 0.5～1;
The weight ratio of water consumption and Binder Materials is controlled at 0.3～0.40; More than the denseness that makes newly to mix cement mortar by adjusting water reducer volume reaches 15cm, more than the 28 days compression strength of cement mortar of mixing breeze reaches 50MPa;
2) preparation has the optical fiber fabric of following feature:
The plastic optical fiber that optical fiber adopts light transmittance to be greater than 90%, diameter is 0.5～1.5mm; First be single layer optical fiber cloth optical fiber weaving, in optical fiber cloth, each fibre single thread warp-wise or broadwise are arranged in parallel, and the distance between optical fiber is controlled at 3～6mm, and broadwise or warp-wise are fixed with cotton yarn; Then use coupling agent treatment optical fiber surface, then optical fiber cloth is fixed in mould according to the mode of design;
3) by one of following two kinds of modes, optical fiber fabric is located in mould:
Mould is the die trial of cuboid uncovered wood, in the direction in uncovered one end perpendicular to two long limits, and the reinforcing bar that is arranged in parallel, and reinforcing bar is fixed by nail gun; According to moulding winding optical fiber cloth, below optical fiber cloth, place reinforcing bar, lean on reinforcing bar Action of Gravity Field by stretching optical fiber cloth;
Mould is the die trial of cuboid uncovered wood, hammers into reinforcing bar and by its reinforcing on base plate according to required figure; Then according to moulding, winding optical fiber cloth on reinforcing bar;
4) moulding of non-light tight concrete
After optical fiber cloth fixedly completes, in die trial, fill and newly mix above-mentioned upper flow regime high strength cement mortar, test specimen after maintenance to 28 day, is cut hardened cement mortar body under moist environment with cutting machine, by cutting section sanding and polishing and with organic silicone oil spraying, thereby obtain non-light tight concrete.
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104827565B (en) * | 2015-05-15 | 2017-03-08 | 中建商品混凝土有限公司 | The non-light tight concrete preparation technology of slurry is wrapped up in based on optical fiber |
| CN105130338B (en) * | 2015-08-28 | 2017-11-17 | 深圳海龙建筑科技有限公司 | Non-light tight concrete prefabricated components and preparation method thereof |
| CN105971194B (en) * | 2016-06-28 | 2019-02-26 | 广州固恒建材有限公司 | A kind of non-light tight concrete plate and preparation method thereof with wire-drawing effect |
| CN107574769A (en) * | 2017-08-18 | 2018-01-12 | 中建商品混凝土有限公司 | Luminous concrete of a kind of organic polymer and preparation method thereof |
| CN108751866A (en) * | 2018-07-19 | 2018-11-06 | 成都宏基建材股份有限公司 | A kind of copper ashes fine aggregate non-light tight concrete and preparation method thereof |
| CN109483719B (en) * | 2018-12-10 | 2021-01-12 | 深圳市中天元实业有限公司 | Light-transmitting concrete and preparation method thereof |
| CN109760175A (en) * | 2019-03-01 | 2019-05-17 | 湖南恒盛瑞通新型建材有限公司 | A kind of production method and its production mould of non-light tight concrete |
| CN110317025A (en) * | 2019-08-07 | 2019-10-11 | 东莞市润阳联合智造有限公司 | A kind of strong concrete composition and non-light tight concrete wall lamp preparation method |
| CN110862251B (en) * | 2019-11-28 | 2021-11-19 | 冀东水泥重庆混凝土有限公司 | Light-transmitting concrete body and preparation method thereof |
| CN110936492A (en) * | 2019-12-16 | 2020-03-31 | 安徽海龙建筑工业有限公司 | Preparation method of high-performance cone-shaped light-transmitting concrete |
| CN115490488B (en) * | 2022-09-14 | 2023-06-23 | 四川聚力建材科技有限公司 | Color light-transmitting concrete and preparation method thereof |
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