A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recycled micro-powder concrete and preparation method thereof
The invention relates to the technical field of building materials, in particular to recycled micro-powder concrete and a preparation method thereof. The recycled micro-powder concrete is prepared from, by weight, 400-430 parts of cement, 750-800 parts of fine aggregate, 1100-1200 parts of coarse aggregate, 6-12 parts of admixture, 40-50 parts of modified micro-powder admixture and 150-170 parts of water; the modified micro-powder admixture comprises the following components in parts by weight: 6-12 parts of fly ash, 4-8 parts of silica fume and 6-18 parts of a regenerated micro-powder admixture; and the regenerated micro powder admixture comprises the following components in parts by weight: 4-15 parts of regenerated concrete micro powder and 1-3 parts of brick powder. The regenerated micro-powder concrete disclosed by the invention is relatively fast in setting time, relatively fast in early strength increase and relatively stable in later strength; the regenerated building micro powder of the building waste powder and the brick powder is doped into the concrete, so that the building waste is recycled, the resource is saved, the cost is reduced, the stacking of the building waste is reduced, and the concrete is relatively environment-friendly; the preparation method has the advantages of easily available raw materials, low cost, simple preparation process operation, no special requirement on equipment and easy industrialization.
本发明涉及建筑材料技术领域，尤其涉及一种再生微粉混凝土及其制备方法，所述再生微粉混凝土包括以下重量份的组分：水泥400~430份，细骨料750~800份，粗骨料1100~1200份，外加剂6~12份，改性微粉掺料40~50份和水150~170份；所述改性微粉掺料包括以下重量份的组分：粉煤灰6~12份，硅灰4~8份，再生微粉掺合料6~18份；所述再生微粉掺合料包括以下重量份的组分：再生混凝土微粉4~15份，砖粉1~3份。本发明再生微粉混凝土凝结时间较快，早期强度增加较快，后期强度较稳定；在混凝土中掺入由建筑垃圾粉末、砖粉的再生建筑微粉，回收利用了建筑废物，节约了资源，降低了成本，减少建筑垃圾的堆放，较为环保；原料易得，成本低，制备工艺操作简单，对设备无特殊要求，易于产业化。
Recycled micro-powder concrete and preparation method thereof
The invention relates to the technical field of building materials, in particular to recycled micro-powder concrete and a preparation method thereof. The recycled micro-powder concrete is prepared from, by weight, 400-430 parts of cement, 750-800 parts of fine aggregate, 1100-1200 parts of coarse aggregate, 6-12 parts of admixture, 40-50 parts of modified micro-powder admixture and 150-170 parts of water; the modified micro-powder admixture comprises the following components in parts by weight: 6-12 parts of fly ash, 4-8 parts of silica fume and 6-18 parts of a regenerated micro-powder admixture; and the regenerated micro powder admixture comprises the following components in parts by weight: 4-15 parts of regenerated concrete micro powder and 1-3 parts of brick powder. The regenerated micro-powder concrete disclosed by the invention is relatively fast in setting time, relatively fast in early strength increase and relatively stable in later strength; the regenerated building micro powder of the building waste powder and the brick powder is doped into the concrete, so that the building waste is recycled, the resource is saved, the cost is reduced, the stacking of the building waste is reduced, and the concrete is relatively environment-friendly; the preparation method has the advantages of easily available raw materials, low cost, simple preparation process operation, no special requirement on equipment and easy industrialization.
本发明涉及建筑材料技术领域，尤其涉及一种再生微粉混凝土及其制备方法，所述再生微粉混凝土包括以下重量份的组分：水泥400~430份，细骨料750~800份，粗骨料1100~1200份，外加剂6~12份，改性微粉掺料40~50份和水150~170份；所述改性微粉掺料包括以下重量份的组分：粉煤灰6~12份，硅灰4~8份，再生微粉掺合料6~18份；所述再生微粉掺合料包括以下重量份的组分：再生混凝土微粉4~15份，砖粉1~3份。本发明再生微粉混凝土凝结时间较快，早期强度增加较快，后期强度较稳定；在混凝土中掺入由建筑垃圾粉末、砖粉的再生建筑微粉，回收利用了建筑废物，节约了资源，降低了成本，减少建筑垃圾的堆放，较为环保；原料易得，成本低，制备工艺操作简单，对设备无特殊要求，易于产业化。
Recycled micro-powder concrete and preparation method thereof
一种再生微粉混凝土及其制备方法
LOU CONG (author) / QU HAOJIAN (author) / HU XIANFENG (author) / ZHENG CHAOCAN (author) / LI XIAOZHEN (author)
2021-09-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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