Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Toughened high-strength heat-resistant concrete and preparation method thereof
The invention discloses toughened high-strength heat-resistant concrete and a preparation method thereof. The toughened high-strength heat-resistant concrete is prepared from the following components in parts by weight: 700 to 900 parts of coarse aggregate, 600 to 900 parts of fine aggregate, 160 to 260 parts of cement, 200 to 350 parts of fine powder filler, 50 to 100 parts of fly ash, 50 to 100 parts of silica powder, 10 to 30 parts of low-temperature reinforcing agent, 3 to 8 parts of fiber toughening agent, 8 to 20 parts of high-efficiency water reducing agent and 150 to 200 parts of water. The heat-resistant concrete provided by the invention greatly reduces hot crack propagation and hot spalling damage in the use process, has good flexibility, high structural strength, small loss and no crack in the use process, and effectively solves the problems of low-temperature shrinkage cracking, temperature rise burst, cracking due to rapid cooling and rapid heating and the like of the heat-resistant concrete; the requirements on lasting safety and heat resistance in a thermal service environment are met.
本发明公开了一种增韧型高强耐热混凝土及其制备方法。其中，增韧型高强耐热混凝土，按重量份数计，组成包含：粗骨料700～900份，细骨料600～900份，水泥160～260份，细粉填料200～350份，粉煤灰50～100份，硅微粉50～100份，低温增强剂10～30份，纤维增韧剂3～8份，高效减水剂8～20份，以及水150～200份。本发明的耐热混凝土在使用过程中大幅度减轻了热裂纹扩展和热剥落损伤，具有良好的柔韧性、结构强度高且损失小，使用过程无裂缝，有效解决了耐热混凝土低温干缩开裂、升温爆裂、承受急冷急热而开裂等问题，满足其热服役环境下的持久安全性和耐热性能的要求。
Toughened high-strength heat-resistant concrete and preparation method thereof
The invention discloses toughened high-strength heat-resistant concrete and a preparation method thereof. The toughened high-strength heat-resistant concrete is prepared from the following components in parts by weight: 700 to 900 parts of coarse aggregate, 600 to 900 parts of fine aggregate, 160 to 260 parts of cement, 200 to 350 parts of fine powder filler, 50 to 100 parts of fly ash, 50 to 100 parts of silica powder, 10 to 30 parts of low-temperature reinforcing agent, 3 to 8 parts of fiber toughening agent, 8 to 20 parts of high-efficiency water reducing agent and 150 to 200 parts of water. The heat-resistant concrete provided by the invention greatly reduces hot crack propagation and hot spalling damage in the use process, has good flexibility, high structural strength, small loss and no crack in the use process, and effectively solves the problems of low-temperature shrinkage cracking, temperature rise burst, cracking due to rapid cooling and rapid heating and the like of the heat-resistant concrete; the requirements on lasting safety and heat resistance in a thermal service environment are met.
本发明公开了一种增韧型高强耐热混凝土及其制备方法。其中，增韧型高强耐热混凝土，按重量份数计，组成包含：粗骨料700～900份，细骨料600～900份，水泥160～260份，细粉填料200～350份，粉煤灰50～100份，硅微粉50～100份，低温增强剂10～30份，纤维增韧剂3～8份，高效减水剂8～20份，以及水150～200份。本发明的耐热混凝土在使用过程中大幅度减轻了热裂纹扩展和热剥落损伤，具有良好的柔韧性、结构强度高且损失小，使用过程无裂缝，有效解决了耐热混凝土低温干缩开裂、升温爆裂、承受急冷急热而开裂等问题，满足其热服役环境下的持久安全性和耐热性能的要求。
Toughened high-strength heat-resistant concrete and preparation method thereof
一种增韧型高强耐热混凝土及其制备方法
XU ZIWEI (Autor:in) / HAN YUDONG (Autor:in) / WU ZHIGANG (Autor:in) / SONG TAOWEN (Autor:in) / QI XIAOTONG (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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