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A platform for research: civil engineering, architecture and urbanism
Multi-element solid waste-based recycled concrete and preparation method thereof
The invention discloses a preparation method of multi-element solid waste-based recycled concrete, and a production raw material formula comprises the following components in parts by mass: 63 to 105 parts of Portland cement clinker, 189 to 273 parts of composite modified cementing material, 21 to 42 parts of superfine building slag powder, 21 to 42 parts of granulated blast furnace slag powder, 198 to 461 parts of modified recycled coarse aggregate, 141 to 283 parts of modified recycled fine aggregate, 857 to 1120 parts of gravel and 283 to 424 parts of fine sand. 0.42-1.26 parts of a polycarboxylic acid water reducing agent and 147 parts of water. The method has the advantages that 1) the compressive strength of a concrete material can be obviously improved, and experiments prove that the 3d compressive strength of the multi-element solid waste-based recycled concrete prepared by the method is greater than or equal to 15.0 MPa, the 7d compressive strength is greater than or equal to 20.0 MPa, and the 28d compressive strength is greater than or equal to 40.0 MPa; and (2) comprehensive utilization of various industrial solid wastes and building solid wastes is realized.
本发明公开了一种多元固废基再生混凝土的制备方法，生产原料配方包括如下质量份数比例的各组分：硅酸盐水泥熟料63～105份，复合改性胶凝材料189～273份，超细建渣粉21～42份，粒化高炉矿渣粉21～42份，改性再生粗骨料198～461份，改性再生细骨料141～283份，碎石857～1120份，细砂283～424份，聚羧酸减水剂0.42～1.26份，水147份。其优点是：1)能够显著提高混凝土材料的抗压强度，实验证明，采用本发明的方法制得的多元固废基再生混凝土3d抗压强度≥15.0MPa，7d抗压强度≥20.0MPa，28d抗压强度≥40.0MPa。2)实现了多种工业固废与建筑固废的综合利用。
Multi-element solid waste-based recycled concrete and preparation method thereof
The invention discloses a preparation method of multi-element solid waste-based recycled concrete, and a production raw material formula comprises the following components in parts by mass: 63 to 105 parts of Portland cement clinker, 189 to 273 parts of composite modified cementing material, 21 to 42 parts of superfine building slag powder, 21 to 42 parts of granulated blast furnace slag powder, 198 to 461 parts of modified recycled coarse aggregate, 141 to 283 parts of modified recycled fine aggregate, 857 to 1120 parts of gravel and 283 to 424 parts of fine sand. 0.42-1.26 parts of a polycarboxylic acid water reducing agent and 147 parts of water. The method has the advantages that 1) the compressive strength of a concrete material can be obviously improved, and experiments prove that the 3d compressive strength of the multi-element solid waste-based recycled concrete prepared by the method is greater than or equal to 15.0 MPa, the 7d compressive strength is greater than or equal to 20.0 MPa, and the 28d compressive strength is greater than or equal to 40.0 MPa; and (2) comprehensive utilization of various industrial solid wastes and building solid wastes is realized.
本发明公开了一种多元固废基再生混凝土的制备方法，生产原料配方包括如下质量份数比例的各组分：硅酸盐水泥熟料63～105份，复合改性胶凝材料189～273份，超细建渣粉21～42份，粒化高炉矿渣粉21～42份，改性再生粗骨料198～461份，改性再生细骨料141～283份，碎石857～1120份，细砂283～424份，聚羧酸减水剂0.42～1.26份，水147份。其优点是：1)能够显著提高混凝土材料的抗压强度，实验证明，采用本发明的方法制得的多元固废基再生混凝土3d抗压强度≥15.0MPa，7d抗压强度≥20.0MPa，28d抗压强度≥40.0MPa。2)实现了多种工业固废与建筑固废的综合利用。
Multi-element solid waste-based recycled concrete and preparation method thereof
多元固废基再生混凝土及其制备方法
LIU YANG (author) / XU CHUANGXIA (author) / ZHANG LINTAO (author) / DU YUHUI (author) / LI JIYUN (author) / WANG YUANGUI (author)
2024-07-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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