CN102848451A - 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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- CN102848451A CN102848451A CN201210258969XA CN201210258969A CN102848451A CN 102848451 A CN102848451 A CN 102848451A CN 201210258969X A CN201210258969X A CN 201210258969XA CN 201210258969 A CN201210258969 A CN 201210258969A CN 102848451 A CN102848451 A CN 102848451A
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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 the 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.Compare with second generation transparent cement-based material, it is simple that this kind 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 characteristics such as high strength, is promoting Construction Lighting Economization on Energy, building decoration field to have broad application prospects.
Background technology
Although have at present the relevant report about the cement based non-light tight concrete, but about the concrete material of cement based light transmissive material form and preparation technology's report seldom, what known is: 1) select nature of glass multimode fibre, require coating on the optical fiber surface, and select coupling agent that optical fiber surface is carried out preliminary treatment.Optical fiber directly through being 2～300 μ m, a large amount of fibre bundles is imbedded in the cement matrix material in the mode that is arranged in parallel, and direction is consistent with the light transmission direction, and the special-effect such as looking like as the conductor of transmission ray to realize that the cement concrete material printing opacity passes, 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.Parallel being tiled in the die trial of 2D optical fiber fabric delamination that weaving is good, the good 3D optical fiber fabric with multilayer space structure of maybe will weaving are poured into a mould fresh cement paste after lifting and launching also to be fixed again, then plug and pound closely knit with vibrating spear.At last hardened cement is tried the cutting of body and function cutting machine, again with the cutting section sanding and polishing, thereby obtain transparent cement-based material.
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, form and preparation method's analysis from material, also there is following problem, affected performance and the application of this material, specific as follows:
1) material cost is higher: optical fiber volume volume is up to about 30%, 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 the colligation stationary positioned during braiding, is woven into 3D or the 2D fabric has certain difficulty by multiple-axial warp knitting machine.
3) translucent effect of material and ornamental difficult the assurance: 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 the 2D fabric is easily sent out bending, the dislocation of sliding, even skid off, be difficult to reach the locating effect of expection, and then be difficult to give full play to the transmittancy of optical fiber, cause the light transmission efficiency of material to reduce and the decorative effect variation.
4) intensity of material is lower, durability is relatively poor: owing to there is simultaneously close situation of paving capable optical fiber of warp-wise and broadwise in 3D and the 2D fabric, greatly improved the 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 guarantee.
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) prepare the upper flow regime high strength cement mortar with 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; Water reducer adopts water-reducing rate greater than 15% polycarboxylate water-reducer; And to adopt simultaneously defoamer, volume be 0.2% ~ 0.5% of cement, water, breeze and the gross weight of gathering materials;
Gather materials: the particle diameter scope is the quartz sand of 0.06 ~ 1.18mm, and 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; By adjusting the water reducer volume denseness of newly mixing cement mortar is reached more than the 15cm, the 28 days compression strength of cement mortar of mixing breeze reaches more than the 50MPa;
2) preparation has the feature of the optical fiber fabric of following feature:
Optical fiber adopts light transmittance greater than 90% plastic optical fiber, and diameter is 0.5～1.5mm; At first the optical fiber weaving is single layer optical fiber cloth, each fibre single thread warp-wise or broadwise are arranged in parallel in the optical fiber cloth, and the distance between the optical fiber is controlled at 3 ~ 6mm, and broadwise or warp-wise are fixed with cotton yarn; Then use the coupling agent treatment optical fiber surface, again the mode of fiber cloth according to design is fixed in the mould;
3) by one of following dual mode the optical fiber fabric is located in mould:
Mould is the die trial of cuboid uncovered wood, on the direction of uncovered one end perpendicular to two long limits, and the reinforcing bar that is arranged in parallel, and with nail gun reinforcing bar is fixed; According to moulding winding optical fiber cloth, below optical fiber cloth, place reinforcing bar, by the reinforcing bar Action of Gravity Field that optical fiber cloth is stretching;
Mould is the die trial of cuboid uncovered wood, hammers into reinforcing bar according to required figure and with its reinforcing on base plate; Then according to moulding, winding optical fiber cloth on reinforcing bar;
4) moulding of non-light tight concrete
After optical fiber cloth is fixedly finished, in die trial, fill with and newly mix above-mentioned upper flow regime high strength cement mortar, test specimen after maintenance to 28 under the environment of humidity day, is cut hardened cement mortar body and function cutting machine, spray with the cutting section sanding and polishing and with organic silicone oil, thereby obtain non-light tight concrete.
The present invention can address the above problem well, innovates from material composition and each angle of preparation technology, and major advantage is as follows:
1) material cost reduction, durability improve: optical fiber volume volume more than 2 times, has significantly reduced manufacturing cost than original Techniques For Reducing only up to about 5%.Optical fiber adopts plastic optical fiber, has greatly improved the corrosivity of opposing calcium hydroxide.
2) one-way single-layer optical fiber fabric prepares the difficulty reduction: adopt plain weave, the optical fiber weaving is become one-way single-layer optical fiber fabric, and easy to operate, be difficult for misdrawing.
3) the fiber orientation effect significantly improves: the warp-wise (or broadwise) of one-way single-layer optical fiber fabric is Yi Bian only use optical fiber, Yi Bian use in addition the fiber such as cotton yarn, consolidation is firm more to make fiber orientation, and not flexible dislocation is extracted out.Optical fiber cloth is being wound in the process of moulding on the reinforcing bar, is also guaranteeing convenience and the accuracy of moulding process, improving simultaneously locating effect.And institute joins upper flow regime, self-compaction cement mortar and need not vibrate after building, and can not affect the locating effect of optical fiber.
4) translucent effect of material significantly improves: in the situation that the locating effect of optical fiber improves, and the fiber orientation parallel arrangement, the 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, the simple to operate realization improved the artistic value of material.
6) intensity of material significantly improves: the use of one-way single-layer optical fiber fabric, improved the uniformity of original cement matrix, and fiber is to the reinforcement effect of matrix in addition, thereby improved the intensity of material.
Innovation by above-mentioned material, preparation technology and forming method, can prepare novel non-light tight concrete material, compare with second generation transparent cement-based material, have that translucent effect is good, preparation technology is convenient, the intensity advantages of higher, is novel third generation transparent cement concrete material.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the ground plan of die trial of the present invention.
The specific embodiment
The raw material of mortar form as follows respectively in the examples of implementation:
Mortar 1: Binder Materials is the S95 level breeze that the ChangPing, Beijing City gold and jade of the P.O32.5 portland cement compound 25% of weight ratio 75% comes mineral powder plant to produce, 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 admixture water-reducing rate not restrains the fluidity that F0X-8H type powder polycarboxylate water-reducer is adjusted cement mortar greater than 15% Suzhou, makes its denseness reach 16cm; 28 days compression strength of mortar has reached 58MPa.
Mortar 2: Binder Materials comprises cement and breeze, and cement is P.O 32.5 portland cements, and breeze is the S95 level breeze that ChangPing, Beijing City gold and jade comes mineral powder plant to produce, 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 admixture water-reducing rate not restrains the fluidity that F0X-8H type powder polycarboxylate water-reducer is adjusted cement mortar greater than 15% Suzhou, makes its denseness reach 15cm; 28 days compression strength of mortar has reached 66MPa.
Mortar 3: Binder Materials comprises cement and breeze, and cement is P.O 32.5 portland cements, and breeze is the S95 level breeze that ChangPing, Beijing City gold and jade comes mineral powder plant to produce, 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 admixture water-reducing rate not restrains the fluidity that F0X-8H type powder polycarboxylate water-reducer is adjusted cement mortar greater than 15% Suzhou, makes its denseness reach 17cm; 28 days compression strength of mortar has reached 52MPa.
Mortar 4: Binder Materials comprises cement and breeze, and cement is the P.O42.5 portland cement, and breeze is the S95 level breeze that ChangPing, Beijing City gold and jade comes mineral powder plant to produce, 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 admixture water-reducing rate not restrains the fluidity that F0X-8H type powder polycarboxylate water-reducer is adjusted cement mortar greater than 15% Suzhou, 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, and each fibre single thread warp-wise is arranged in parallel in the optical fiber cloth, and the distance between the optical fiber is controlled at 3mm, and broadwise is fixed with cotton yarn, uses the coupling agent treatment optical fiber surface.
Fabric 2: fibre diameter is 0.75mm, single layer optical fiber cloth, and each fibre single thread warp-wise is arranged in parallel in the optical fiber cloth, and the distance between the optical fiber is controlled at 4mm, and broadwise is fixed with cotton yarn, uses the coupling agent treatment optical fiber surface.
Fabric 3: fibre diameter is 1.5mm, single layer optical fiber cloth, and each fibre single thread broadwise is arranged in parallel in the optical fiber cloth, and the distance between the optical fiber is controlled at 6mm, and warp-wise is fixed with cotton yarn, uses the coupling agent treatment optical fiber surface.
Fabric 4: fibre diameter is 1mm, single layer optical fiber cloth, and each fibre single thread broadwise is arranged in parallel in the optical fiber cloth, and the distance between the optical fiber is controlled at 5mm, and warp-wise is fixed with cotton yarn, uses the coupling agent treatment optical fiber surface.
● locate mode and the processing method of test specimen of optical fiber fabric in mould is as follows:
Structural form according to specific die trial 1: adopt the die trial of cuboid uncovered wood, on the direction of uncovered one end perpendicular to two long limits, according to the spacing that designs (such as the 10mm) reinforcing bar that is arranged in parallel, and be fixed with 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 Action of Gravity Field is on the center line of adjacent two reinforcing bars in top, and the optical fiber cloth facade that so twines becomes the triangle of rule.In addition, also can fixedly make optical fiber cloth facade become regular trapezoidal or rectangle etc. in the position of reinforcing bar and bottom Chui La reinforcing bar by changing top.
Structural form according to specific die trial 2: on base plate, hammer into reinforcing bar according to design configuration and be fixed.Then according to required moulding (such as rectangle, triangle etc.), winding optical fiber cloth.The optical fiber cloth plane of so twining can become various complicated shapes.
Cement slurry will be filled with at last in the die trial.After the maintenance 28 days, the hardened cement mortar is cut, polishes, polishes and sprays with organic silicone oil, thereby obtain non-light tight concrete.
Test index is 28 days compression strength of test specimen, wettability and light transmittance.The AAS test is adopted in the detection of light transmittance.
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) prepare the upper flow regime high strength cement mortar with 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; Water reducer adopts water-reducing rate greater than 15% polycarboxylate water-reducer; And to adopt simultaneously defoamer, volume be 0.2% ~ 0.5% of cement, water, breeze and the gross weight of gathering materials;
Gather materials: the particle diameter scope is the quartz sand of 0.06 ~ 1.18mm, and 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; By adjusting the water reducer volume denseness of newly mixing cement mortar is reached more than the 15cm, the 28 days compression strength of cement mortar of mixing breeze reaches more than the 50MPa;
2) preparation has the feature of the optical fiber fabric of following feature:
Optical fiber adopts light transmittance greater than 90% plastic optical fiber, and diameter is 0.5～1.5mm; At first the optical fiber weaving is single layer optical fiber cloth, each fibre single thread warp-wise or broadwise are arranged in parallel in the optical fiber cloth, and the distance between the optical fiber is controlled at 3 ~ 6mm, and broadwise or warp-wise are fixed with cotton yarn; Then use the coupling agent treatment optical fiber surface, again the mode of fiber cloth according to design is fixed in the mould;
3) by one of following dual mode the optical fiber fabric is located in mould:
Mould is the die trial of cuboid uncovered wood, on the direction of uncovered one end perpendicular to two long limits, and the reinforcing bar that is arranged in parallel, and with nail gun reinforcing bar is fixed; According to moulding winding optical fiber cloth, below optical fiber cloth, place reinforcing bar, by the reinforcing bar Action of Gravity Field that optical fiber cloth is stretching;
Mould is the die trial of cuboid uncovered wood, hammers into reinforcing bar according to required figure and with its reinforcing on base plate; Then according to moulding, winding optical fiber cloth on reinforcing bar;
4) moulding of non-light tight concrete
After optical fiber cloth is fixedly finished, in die trial, fill with and newly mix above-mentioned upper flow regime high strength cement mortar, test specimen after maintenance to 28 under the environment of humidity day, is cut hardened cement mortar body and function cutting machine, spray with the cutting section sanding and polishing and with organic silicone oil, thereby obtain non-light tight concrete.
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| CN105971194A (en) * | 2016-06-28 | 2016-09-28 | 广州固恒建材有限公司 | Light-transmitting concrete slab with wire drawing effect and manufacturing method thereof |
| WO2016184306A1 (en) * | 2015-05-15 | 2016-11-24 | 中建商品混凝土有限公司 | Light-transmitting concrete manufacturing process based on wrapping optical fibre with paste |
| 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 |
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| CN110862251A (en) * | 2019-11-28 | 2020-03-06 | 冀东水泥重庆混凝土有限公司 | Light-transmitting concrete body and preparation method thereof |
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| 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 |
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| CN109483719A (en) * | 2018-12-10 | 2019-03-19 | 马清浩 | A kind of non-light tight 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 |
| CN110862251A (en) * | 2019-11-28 | 2020-03-06 | 冀东水泥重庆混凝土有限公司 | Light-transmitting concrete body and preparation method thereof |
| 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 |
| CN115490488A (en) * | 2022-09-14 | 2022-12-20 | 四川聚力建材科技有限公司 | Colored light-transmitting concrete and preparation method thereof |
| 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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