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A platform for research: civil engineering, architecture and urbanism
Ultra-large-volume high-strength low-hydration-heat concrete
The invention relates to the field of concrete materials, and particularly discloses ultra-large-volume high-strength low-hydration-heat concrete which is prepared from the following substances in parts by weight: 25-35 parts of cement, 70-80 parts of sand, 100-120 parts of coarse aggregate, 15-20 parts of water, 5-10 parts of admixture and 0.1-0.2 part of modified superplasticizer, wherein the admixture comprises fly ash, and the modified water reducing agent is a silane modified polycarboxylate superplasticizer. The silane modified polycarboxylate superplasticizer is used as a modified material, hydration of hydrated minerals and growth of hydration products are inhibited so that the heat production rate of hydration heat in the concrete is effectively reduced, the phenomenon that the hydration heat in the ultra-large-volume concrete is relatively high is further improved, and the mechanical strength of the concrete material is effectively improved.
本申请涉及混凝土材料领域，具体公开了一种超大体积高强度低水化热混凝土，包括以下重量份物质：水泥25～35份、砂70～80份、粗骨料100～120份、水15～20份、掺合料5～10份和改性减水剂0.1～0.2份；所述掺合料包括粉煤灰，所述改性减水剂为硅烷改性型聚羧酸减水剂。本申请通过硅烷改性的聚羧酸减水剂为改性材料，抑制了水化矿物的水化和水化产物的生长，从而有效降低混凝土内部水化热的产热速率，进一步改善了超大体积混凝土内部水化热较高的现象，从而有效提高了混凝土材料的力学强度。
Ultra-large-volume high-strength low-hydration-heat concrete
The invention relates to the field of concrete materials, and particularly discloses ultra-large-volume high-strength low-hydration-heat concrete which is prepared from the following substances in parts by weight: 25-35 parts of cement, 70-80 parts of sand, 100-120 parts of coarse aggregate, 15-20 parts of water, 5-10 parts of admixture and 0.1-0.2 part of modified superplasticizer, wherein the admixture comprises fly ash, and the modified water reducing agent is a silane modified polycarboxylate superplasticizer. The silane modified polycarboxylate superplasticizer is used as a modified material, hydration of hydrated minerals and growth of hydration products are inhibited so that the heat production rate of hydration heat in the concrete is effectively reduced, the phenomenon that the hydration heat in the ultra-large-volume concrete is relatively high is further improved, and the mechanical strength of the concrete material is effectively improved.
本申请涉及混凝土材料领域，具体公开了一种超大体积高强度低水化热混凝土，包括以下重量份物质：水泥25～35份、砂70～80份、粗骨料100～120份、水15～20份、掺合料5～10份和改性减水剂0.1～0.2份；所述掺合料包括粉煤灰，所述改性减水剂为硅烷改性型聚羧酸减水剂。本申请通过硅烷改性的聚羧酸减水剂为改性材料，抑制了水化矿物的水化和水化产物的生长，从而有效降低混凝土内部水化热的产热速率，进一步改善了超大体积混凝土内部水化热较高的现象，从而有效提高了混凝土材料的力学强度。
Ultra-large-volume high-strength low-hydration-heat concrete
一种超大体积高强度低水化热混凝土
WENG ZHONGBIAO (author) / LYU RONGFENG (author) / XIA YONGZHOU (author) / MA KUAI (author) / WEI CHENGQIU (author) / HU YUMEI (author)
2021-09-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Hydration Heat and Strength Development in High Performance Concrete
| British Library Conference Proceedings | 1997
Assessment of Heat of Hydration of High-Strength Concrete
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Study on heat of hydration on high strength concrete
| Tema Archive | 2001