A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Freeze-thaw-resistant crystal nucleus reinforced self-compacting pervious concrete and preparation method thereof
The invention discloses freeze-thaw-resistant crystal nucleus reinforced self-compacting pervious concrete and a preparation method thereof. The freeze-thaw-resistant crystal nucleus reinforced self-compacting pervious concrete comprises the following components in parts by weight: 20-35 parts of cement; 45-55 parts by weight of sand; 1-4 parts by weight of a nanometer crystal nucleus early strength agent; 2-4 parts by weight of fly ash; 7-9 parts by weight of water; 0.4 to 0.7 part by weight of a high efficiency water reducing agent; and 3-6 parts by weight of hook-shaped steel fiber. The freeze-thaw-resistant crystal nucleus reinforced self-compacting pervious concrete is good in mechanical property and durability after being frozen and thawed for 300 times, and has relatively good blockage resistance. By controlling the diameter of the pre-embedded pore-forming component in the preparation process, the diameter of the pre-embedded part is changed to change the porosity, so that the target permeability coefficient is easily obtained. According to the invention, the problem of poor frost resistance of pervious concrete in the prior art is solved, and the technical effects of improving the frost resistance, compressive strength and breaking strength of the pervious concrete are achieved.
本发明公开了一种耐冻融的晶核增强自密实透水混凝土及其制备方法，包括如下重量份的组分：20~35重量份的水泥；45~55重量份的砂；1~4重量份的纳米晶核早强剂；2~4重量份的粉煤灰；7~9重量份的水；0.4~0.7重量份的高效减水剂；3~6重量份的弯钩形钢纤维。这种耐冻融的晶核增强自密实透水混凝土，经过300次冻融后力学性能和耐久性能表现良好，具有较好的耐堵塞性。通过制备过程中预埋成孔构件直径的控制，改变预埋件直径的大小以改变孔隙率，从而容易获得目标透水系数。本发明解决了现有技术中的透水混凝土存在抗冻性能较差的问题，实现了提高透水混凝土的抗冻性能、抗压强度和抗折强度的技术效果。
Freeze-thaw-resistant crystal nucleus reinforced self-compacting pervious concrete and preparation method thereof
The invention discloses freeze-thaw-resistant crystal nucleus reinforced self-compacting pervious concrete and a preparation method thereof. The freeze-thaw-resistant crystal nucleus reinforced self-compacting pervious concrete comprises the following components in parts by weight: 20-35 parts of cement; 45-55 parts by weight of sand; 1-4 parts by weight of a nanometer crystal nucleus early strength agent; 2-4 parts by weight of fly ash; 7-9 parts by weight of water; 0.4 to 0.7 part by weight of a high efficiency water reducing agent; and 3-6 parts by weight of hook-shaped steel fiber. The freeze-thaw-resistant crystal nucleus reinforced self-compacting pervious concrete is good in mechanical property and durability after being frozen and thawed for 300 times, and has relatively good blockage resistance. By controlling the diameter of the pre-embedded pore-forming component in the preparation process, the diameter of the pre-embedded part is changed to change the porosity, so that the target permeability coefficient is easily obtained. According to the invention, the problem of poor frost resistance of pervious concrete in the prior art is solved, and the technical effects of improving the frost resistance, compressive strength and breaking strength of the pervious concrete are achieved.
本发明公开了一种耐冻融的晶核增强自密实透水混凝土及其制备方法，包括如下重量份的组分：20~35重量份的水泥；45~55重量份的砂；1~4重量份的纳米晶核早强剂；2~4重量份的粉煤灰；7~9重量份的水；0.4~0.7重量份的高效减水剂；3~6重量份的弯钩形钢纤维。这种耐冻融的晶核增强自密实透水混凝土，经过300次冻融后力学性能和耐久性能表现良好，具有较好的耐堵塞性。通过制备过程中预埋成孔构件直径的控制，改变预埋件直径的大小以改变孔隙率，从而容易获得目标透水系数。本发明解决了现有技术中的透水混凝土存在抗冻性能较差的问题，实现了提高透水混凝土的抗冻性能、抗压强度和抗折强度的技术效果。
Freeze-thaw-resistant crystal nucleus reinforced self-compacting pervious concrete and preparation method thereof
一种耐冻融的晶核增强自密实透水混凝土及其制备方法
LI WEI (author) / QIAN CHUNXIANG (author) / SHI ZHIHAO (author) / ZHENG CHUNYANG (author) / ZHU XUEFENG (author) / LI QINGCHAO (author) / ZHANG YANLI (author)
2024-09-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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