Recycled aggregate concrete and preparation method thereof
The invention discloses recycled aggregate concrete and a preparation method thereof. The recycled aggregate concrete is prepared from the following raw materials in parts by weight: 270 to 300 parts of cement, 100 to 120 parts of fly ash, 60 to 80 parts of mineral powder, 1050 to 1100 parts of modi...
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| creator | CHEN YANFAN LI ZHEN ZHOU SHANGQUAN LI ZHONG LUO YANG WANG HAO ZHOU YINGJIE XIA WEI CHEN ZHIBIN ZOU SHUQUAN WANG ZIWEI LIU QINGPING YAN WENJIN WANG CHANGHENG |
| description | The invention discloses recycled aggregate concrete and a preparation method thereof. The recycled aggregate concrete is prepared from the following raw materials in parts by weight: 270 to 300 parts of cement, 100 to 120 parts of fly ash, 60 to 80 parts of mineral powder, 1050 to 1100 parts of modified recycled aggregate, 700 to 720 parts of sand, 160 to 180 parts of water, 9 to 10 parts of water reducing agent, 50 to 80 parts of enhancer and 5 to 8 parts of diethylaminopropylamine, in the mixing process of the recycled aggregate concrete raw materials, under the alkaline condition, active amino groups on the modified recycled aggregate can react with part of epoxy groups among molecules of the reinforcer, and the remaining epoxy groups can react with amino groups on diethylaminopropylamine, so that the matching between the reinforcer and the modified recycled aggregate is enhanced, and the strength of the concrete is improved. Meanwhile, coating is formed, so that water entering the modified recycled aggreg |
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The recycled aggregate concrete is prepared from the following raw materials in parts by weight: 270 to 300 parts of cement, 100 to 120 parts of fly ash, 60 to 80 parts of mineral powder, 1050 to 1100 parts of modified recycled aggregate, 700 to 720 parts of sand, 160 to 180 parts of water, 9 to 10 parts of water reducing agent, 50 to 80 parts of enhancer and 5 to 8 parts of diethylaminopropylamine, in the mixing process of the recycled aggregate concrete raw materials, under the alkaline condition, active amino groups on the modified recycled aggregate can react with part of epoxy groups among molecules of the reinforcer, and the remaining epoxy groups can react with amino groups on diethylaminopropylamine, so that the matching between the reinforcer and the modified recycled aggregate is enhanced, and the strength of the concrete is improved. 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The recycled aggregate concrete is prepared from the following raw materials in parts by weight: 270 to 300 parts of cement, 100 to 120 parts of fly ash, 60 to 80 parts of mineral powder, 1050 to 1100 parts of modified recycled aggregate, 700 to 720 parts of sand, 160 to 180 parts of water, 9 to 10 parts of water reducing agent, 50 to 80 parts of enhancer and 5 to 8 parts of diethylaminopropylamine, in the mixing process of the recycled aggregate concrete raw materials, under the alkaline condition, active amino groups on the modified recycled aggregate can react with part of epoxy groups among molecules of the reinforcer, and the remaining epoxy groups can react with amino groups on diethylaminopropylamine, so that the matching between the reinforcer and the modified recycled aggregate is enhanced, and the strength of the concrete is improved. 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The recycled aggregate concrete is prepared from the following raw materials in parts by weight: 270 to 300 parts of cement, 100 to 120 parts of fly ash, 60 to 80 parts of mineral powder, 1050 to 1100 parts of modified recycled aggregate, 700 to 720 parts of sand, 160 to 180 parts of water, 9 to 10 parts of water reducing agent, 50 to 80 parts of enhancer and 5 to 8 parts of diethylaminopropylamine, in the mixing process of the recycled aggregate concrete raw materials, under the alkaline condition, active amino groups on the modified recycled aggregate can react with part of epoxy groups among molecules of the reinforcer, and the remaining epoxy groups can react with amino groups on diethylaminopropylamine, so that the matching between the reinforcer and the modified recycled aggregate is enhanced, and the strength of the concrete is improved. Meanwhile, coating is formed, so that water entering the modified recycled aggreg</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS REFRACTORIES SLAG THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF NATURAL STONE |
| title | Recycled aggregate concrete and preparation method thereof |
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