A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of building materials, and particularly discloses environment-friendly solid waste recycled concrete and a preparation method thereof.The environment-friendly solid waste recycled concrete is prepared from 200-500 parts of fly ash, 200-500 parts of desulfurized gypsum, 50-150 parts of furnace slag, 30-200 parts of finished cement, 150-250 parts of water and 1-10 parts of efficient water reducing agent; the particle size of the fly ash is larger than or equal to 25 microns, and the particle size of the slag is smaller than or equal to 25 mm (the slag is crushed, screened and the like to the suitable particle size); the water-cement ratio of the concrete is reduced by adding the high-efficiency water reducing agent, so that the strength of the concrete is improved, and then the strength of the concrete is improved by accurately metering and reasonably adjusting the proportion of various raw materials under the condition that the recycled aggregate and the mineral powder are not used. The concrete can reach ideal initial setting time (including final setting time) and effective concrete strength in the using process, so that the solid wastes (fly ash, desulfurized gypsum and slag) of a thermal power plant are used to the greatest extent, the cyclic utilization of resources is promoted, and the sustainable development is facilitated.
本发明涉及建筑材料技术领域，具体公开了环保型固废再生混凝土及其制备方法，包括以下制备原料：粉煤灰200～500份、脱硫石膏200～500份、炉渣50—150份、成品水泥30～200份、水150～250份、高效减水剂1～10份；所述粉煤灰的粒径大于等于25um，炉渣粒径小于等于25mm(经过破碎、筛分等处理至适用粒径)；本发明通过添加高效减水剂降低混凝土的水灰比，从而提升混凝土的强度，其次在不使用再生骨料与矿粉的情况下，通过精确计量和合理调整各种原料的比例，确保混凝土在使用过程中能够达到理想的初凝时间(含终凝时间)和有效的混凝土强度，从而最大限度的使用火电厂固体废弃物(粉煤灰、脱硫石膏、炉渣)，促进了资源的循环利用，有利于可持续发展。
The invention relates to the technical field of building materials, and particularly discloses environment-friendly solid waste recycled concrete and a preparation method thereof.The environment-friendly solid waste recycled concrete is prepared from 200-500 parts of fly ash, 200-500 parts of desulfurized gypsum, 50-150 parts of furnace slag, 30-200 parts of finished cement, 150-250 parts of water and 1-10 parts of efficient water reducing agent; the particle size of the fly ash is larger than or equal to 25 microns, and the particle size of the slag is smaller than or equal to 25 mm (the slag is crushed, screened and the like to the suitable particle size); the water-cement ratio of the concrete is reduced by adding the high-efficiency water reducing agent, so that the strength of the concrete is improved, and then the strength of the concrete is improved by accurately metering and reasonably adjusting the proportion of various raw materials under the condition that the recycled aggregate and the mineral powder are not used. The concrete can reach ideal initial setting time (including final setting time) and effective concrete strength in the using process, so that the solid wastes (fly ash, desulfurized gypsum and slag) of a thermal power plant are used to the greatest extent, the cyclic utilization of resources is promoted, and the sustainable development is facilitated.
本发明涉及建筑材料技术领域，具体公开了环保型固废再生混凝土及其制备方法，包括以下制备原料：粉煤灰200～500份、脱硫石膏200～500份、炉渣50—150份、成品水泥30～200份、水150～250份、高效减水剂1～10份；所述粉煤灰的粒径大于等于25um，炉渣粒径小于等于25mm(经过破碎、筛分等处理至适用粒径)；本发明通过添加高效减水剂降低混凝土的水灰比，从而提升混凝土的强度，其次在不使用再生骨料与矿粉的情况下，通过精确计量和合理调整各种原料的比例，确保混凝土在使用过程中能够达到理想的初凝时间(含终凝时间)和有效的混凝土强度，从而最大限度的使用火电厂固体废弃物(粉煤灰、脱硫石膏、炉渣)，促进了资源的循环利用，有利于可持续发展。
Environment-friendly solid waste recycled concrete and preparation method thereof
环保型固废再生混凝土及其制备方法
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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