Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Green and economical high-ductility cement-based composite material and preparation method thereof
The invention discloses a green economical high-ductility cement-based composite material and a preparation method thereof. The raw materials of the composite material comprise the following components by mass: 10-20% of cement, 18-23% of quartz sand, 0.75-0.85% of polyvinyl alcohol fiber, 40-48% of fly ash, 0.7-2.8% of calcium carbonate whisker, 0.3-0.9% of nano calcium carbonate, 0.15-0.20% of a water reducer, 0.09-0.11% of a thickener, and 15-20% of water, wherein the sum of the mass percentages of the raw materials is 100%. According to the invention, cement is replaced by the fly ash with ultrahigh mixing amount (the replacement rate is 60-80%), and the fly ash which is waste originally is fully utilized, so that the effects of saving resources, reducing pollution and protecting the environment are achieved. The multi-scale combination of the millimeter-scale polyvinyl alcohol fiber, the micron-scale calcium carbonate whisker and the nano-scale calcium carbonate can form multiple crack-resisting effects on cracks, so that the ductility of the cement-based composite material is effectively improved.
本发明公开了一种绿色经济型高延性水泥基复合材料及其制备方法，其原料按照质量百分比，包括以下组份：水泥10～20％、石英砂18～23％、聚乙烯醇纤维0.75～0.85％、粉煤灰40～48％、碳酸钙晶须0.7～2.8％、纳米碳酸钙0.3～0.9％、减水剂0.15～0.20％、增稠剂0.09～0.11％、水15～20％，各原材料的质量百分数之和为100％。本发明使用超高掺量的粉煤灰取代水泥(取代率为60～80％)，对原本为废弃物的粉煤灰进行了充分利用，达到了节约资源、降低污染、保护环境的效果。本发明中毫米尺度的聚乙烯醇纤维、微米尺度的碳酸钙晶须和纳米尺度的碳酸钙三者之间的多尺度组合能够形成对裂缝的多重阻裂效果，进而有效提升水泥基复合材料的延性。
Green and economical high-ductility cement-based composite material and preparation method thereof
The invention discloses a green economical high-ductility cement-based composite material and a preparation method thereof. The raw materials of the composite material comprise the following components by mass: 10-20% of cement, 18-23% of quartz sand, 0.75-0.85% of polyvinyl alcohol fiber, 40-48% of fly ash, 0.7-2.8% of calcium carbonate whisker, 0.3-0.9% of nano calcium carbonate, 0.15-0.20% of a water reducer, 0.09-0.11% of a thickener, and 15-20% of water, wherein the sum of the mass percentages of the raw materials is 100%. According to the invention, cement is replaced by the fly ash with ultrahigh mixing amount (the replacement rate is 60-80%), and the fly ash which is waste originally is fully utilized, so that the effects of saving resources, reducing pollution and protecting the environment are achieved. The multi-scale combination of the millimeter-scale polyvinyl alcohol fiber, the micron-scale calcium carbonate whisker and the nano-scale calcium carbonate can form multiple crack-resisting effects on cracks, so that the ductility of the cement-based composite material is effectively improved.
本发明公开了一种绿色经济型高延性水泥基复合材料及其制备方法，其原料按照质量百分比，包括以下组份：水泥10～20％、石英砂18～23％、聚乙烯醇纤维0.75～0.85％、粉煤灰40～48％、碳酸钙晶须0.7～2.8％、纳米碳酸钙0.3～0.9％、减水剂0.15～0.20％、增稠剂0.09～0.11％、水15～20％，各原材料的质量百分数之和为100％。本发明使用超高掺量的粉煤灰取代水泥(取代率为60～80％)，对原本为废弃物的粉煤灰进行了充分利用，达到了节约资源、降低污染、保护环境的效果。本发明中毫米尺度的聚乙烯醇纤维、微米尺度的碳酸钙晶须和纳米尺度的碳酸钙三者之间的多尺度组合能够形成对裂缝的多重阻裂效果，进而有效提升水泥基复合材料的延性。
Green and economical high-ductility cement-based composite material and preparation method thereof
一种绿色经济型高延性水泥基复合材料及其制备方法
DENG HANWEN (Autor:in) / MA KAI (Autor:in) / YIN JIAN (Autor:in) / GUO XIAOSHENG (Autor:in) / LIU JUE (Autor:in) / TIAN DONGMEI (Autor:in) / ZUO ZHONGHE (Autor:in) / LI MINGYI (Autor:in) / ZENG XIAODONG (Autor:in) / YAN GUANG (Autor:in)
09.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
High-ductility cement-based composite material and preparation method thereof
| Europäisches Patentamt | 2023
Preparation method of high-ductility cement-based composite material
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2024