Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Durable and stable steel slag cement concrete and preparation process thereof
The invention discloses durable and stable steel slag cement concrete and a preparation process thereof, and relates to the technical field of cement concrete. The steel slag cement concrete is prepared from the following components in parts by weight: 35-50 parts of Portland cement, 40-62 parts of modified converter steel slag powder, 50-76 parts of medium sand, 62-85 parts of gravel, 1.5-3.2 parts of a polycarboxylate superplasticizer and 25-60 parts of water. The macromolecular net structure permeates into a steel slag powder mixture, so that the hydrophilicity is improved, condensation is promoted, the hydration degree is accelerated, free calcium oxide and magnesium oxide are further crushed and pulverized after stirring and grinding, and the volume expansion stress is eliminated; the production cost is reduced through the modified converter steel slag powder, and the compressive strength, durability, frost resistance and impermeability all meet the requirements while the gel effect is met. The polycarboxylic acid water reducer achieves the effect of accelerating cement dispersion, improves the compressive strength of the concrete, and avoids the strength loss in the long-term use process.
本发明公开一种耐久安定的钢渣水泥混凝土及其制备工艺，涉及水泥混凝土技术领域。本发明钢渣水泥混凝土由以下重量份的成分制备而成：硅酸盐水泥35~50份、改性转炉钢渣粉40~62份、中砂50~76份、砾石62~85份、聚羧酸减水剂1.5~3.2份、水25~60份。本发明大分子网状结构渗透入钢渣粉混料中，改善其亲水性和促进凝结，加快水化程度，搅拌、研磨后使得游离氧化钙、氧化镁进一步破碎粉化，消除体积膨胀应力；改性转炉钢渣粉降低了生产成本，在满足凝胶效果的同时，抗压强度、耐久性、抗冻性能和抗渗性能均符合要求。聚羧酸减水剂达到加快分散水泥的效果，提高了混凝土的抗压强度，避免长期使用过程中的强度损失。
Durable and stable steel slag cement concrete and preparation process thereof
The invention discloses durable and stable steel slag cement concrete and a preparation process thereof, and relates to the technical field of cement concrete. The steel slag cement concrete is prepared from the following components in parts by weight: 35-50 parts of Portland cement, 40-62 parts of modified converter steel slag powder, 50-76 parts of medium sand, 62-85 parts of gravel, 1.5-3.2 parts of a polycarboxylate superplasticizer and 25-60 parts of water. The macromolecular net structure permeates into a steel slag powder mixture, so that the hydrophilicity is improved, condensation is promoted, the hydration degree is accelerated, free calcium oxide and magnesium oxide are further crushed and pulverized after stirring and grinding, and the volume expansion stress is eliminated; the production cost is reduced through the modified converter steel slag powder, and the compressive strength, durability, frost resistance and impermeability all meet the requirements while the gel effect is met. The polycarboxylic acid water reducer achieves the effect of accelerating cement dispersion, improves the compressive strength of the concrete, and avoids the strength loss in the long-term use process.
本发明公开一种耐久安定的钢渣水泥混凝土及其制备工艺，涉及水泥混凝土技术领域。本发明钢渣水泥混凝土由以下重量份的成分制备而成：硅酸盐水泥35~50份、改性转炉钢渣粉40~62份、中砂50~76份、砾石62~85份、聚羧酸减水剂1.5~3.2份、水25~60份。本发明大分子网状结构渗透入钢渣粉混料中，改善其亲水性和促进凝结，加快水化程度，搅拌、研磨后使得游离氧化钙、氧化镁进一步破碎粉化，消除体积膨胀应力；改性转炉钢渣粉降低了生产成本，在满足凝胶效果的同时，抗压强度、耐久性、抗冻性能和抗渗性能均符合要求。聚羧酸减水剂达到加快分散水泥的效果，提高了混凝土的抗压强度，避免长期使用过程中的强度损失。
Durable and stable steel slag cement concrete and preparation process thereof
耐久安定的钢渣水泥混凝土及其制备工艺
YU BAOCHENG (Autor:in) / BIAN CHENGLONG (Autor:in) / ZHENG XINKANG (Autor:in) / WU DONGXU (Autor:in) / ZHENG XING (Autor:in) / JIN HUI (Autor:in) / ZHU GUANZE (Autor:in) / SONG ZHENGJIANG (Autor:in) / ZHANG SIYANG (Autor:in) / WANG YONGQIANG (Autor:in)
03.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Durable and stable steel slag-mineral powder concrete and preparation method thereof
| Europäisches Patentamt | 2020
Additive for Durable Slag Cement Concrete and Durable Slag Cement Concrete Contained the Same
| Europäisches Patentamt | 2023
Steel slag cement stable structure and preparation method thereof
| Europäisches Patentamt | 2020
Self-healing steel slag cement concrete and preparation method thereof
| Europäisches Patentamt | 2021
Process for preparing steel slag cement concrete by using converter steel slag
| Europäisches Patentamt | 2022