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A platform for research: civil engineering, architecture and urbanism
Desert aeolian sand high-ductility cement-based composite material and preparation method thereof
The invention belongs to the technical field of civil engineering building materials, and discloses a desert aeolian sand high-ductility cement-based composite material and a preparation method thereof.The composite material is prepared from, by weight, 1.0 part of cement, 0.1-3 parts of desert aeolian sand, 0.1-4 parts of fly ash, 0-0.9 part of silicon powder, 0.0005-0.004 part of rubber powder and a water reducing agent accounting for 0.2-1% of the weight of the cement raw material, the fiber volume ratio is 0-3%, and the water-binder ratio is 0.32-0.38. The desert aeolian sand is used for completely replacing traditional river sand, the coal ash and the silicon powder are used for replacing part of cement, waste is turned into wealth, coarse aggregate is not contained, a large number of additives are not needed, materials do not need to be modified, the aeolian sand does not need to be washed with water or subjected to other treatment, and fiber is not added; the high-ductility cement-based composite material with better mechanical properties can be prepared by adopting a simple and easily-implemented preparation process, so that the defects of low tensile strength, poor toughness and easiness in cracking of traditional concrete can be effectively improved, the supply-demand contradiction of building materials can be relieved, the construction cost is reduced, and the environment is protected.
本发明属于土木工程建筑材料技术领域，公开了一种沙漠风积沙高延性水泥基复合材料及其制备方法，该复合材料由以下重量份比例的原料组成：水泥1.0份，沙漠风积沙0.1‑3份，粉煤灰0.1‑4份，硅粉0‑0.9份，胶粉0.0005‑0.004份，占水泥原料0.2‑1％重量份的减水剂，纤维体积率为0‑3％，水胶比为0.32‑0.38。本发明利用沙漠风积沙完全替换传统河砂，用粉煤灰和硅粉替代部分水泥，“变废为宝”，不含粗骨料，不需要大量外加剂，不需要对材料进行改性，无需对风积沙做水洗等任何处理，加入纤维，采用简单易实现的制备工艺就能制备出具有较好力学性能的高延性水泥基复合材料，既可以有效改善传统混凝土抗拉强度低、韧性差、易开裂的缺陷，又可缓解建筑材料供需矛盾、降低工程造价以及保护环境。
Desert aeolian sand high-ductility cement-based composite material and preparation method thereof
The invention belongs to the technical field of civil engineering building materials, and discloses a desert aeolian sand high-ductility cement-based composite material and a preparation method thereof.The composite material is prepared from, by weight, 1.0 part of cement, 0.1-3 parts of desert aeolian sand, 0.1-4 parts of fly ash, 0-0.9 part of silicon powder, 0.0005-0.004 part of rubber powder and a water reducing agent accounting for 0.2-1% of the weight of the cement raw material, the fiber volume ratio is 0-3%, and the water-binder ratio is 0.32-0.38. The desert aeolian sand is used for completely replacing traditional river sand, the coal ash and the silicon powder are used for replacing part of cement, waste is turned into wealth, coarse aggregate is not contained, a large number of additives are not needed, materials do not need to be modified, the aeolian sand does not need to be washed with water or subjected to other treatment, and fiber is not added; the high-ductility cement-based composite material with better mechanical properties can be prepared by adopting a simple and easily-implemented preparation process, so that the defects of low tensile strength, poor toughness and easiness in cracking of traditional concrete can be effectively improved, the supply-demand contradiction of building materials can be relieved, the construction cost is reduced, and the environment is protected.
本发明属于土木工程建筑材料技术领域，公开了一种沙漠风积沙高延性水泥基复合材料及其制备方法，该复合材料由以下重量份比例的原料组成：水泥1.0份，沙漠风积沙0.1‑3份，粉煤灰0.1‑4份，硅粉0‑0.9份，胶粉0.0005‑0.004份，占水泥原料0.2‑1％重量份的减水剂，纤维体积率为0‑3％，水胶比为0.32‑0.38。本发明利用沙漠风积沙完全替换传统河砂，用粉煤灰和硅粉替代部分水泥，“变废为宝”，不含粗骨料，不需要大量外加剂，不需要对材料进行改性，无需对风积沙做水洗等任何处理，加入纤维，采用简单易实现的制备工艺就能制备出具有较好力学性能的高延性水泥基复合材料，既可以有效改善传统混凝土抗拉强度低、韧性差、易开裂的缺陷，又可缓解建筑材料供需矛盾、降低工程造价以及保护环境。
Desert aeolian sand high-ductility cement-based composite material and preparation method thereof
一种沙漠风积沙高延性水泥基复合材料及其制备方法
XIA DUOTIAN (author) / XIANG XIAOLI (author) / ZHANG DUO (author) / CHENG JIANJUN (author) / LI ZHENGXIANG (author) / CHEN RUILIN (author) / XIAO CHANGQING (author) / LIANG XUAN (author) / WU HAIYANG (author) / CHEN CHI (author)
2022-06-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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