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| 大桥承台大体积混凝土的温度控制与施工 | |
| 引用本文： | 黄绍龙,吕寅,丁庆军,谭立心.大桥承台大体积混凝土的温度控制与施工[J].建筑技术,2011,42(5):438-440. |
| 作者姓名： | 黄绍龙 吕寅 丁庆军 谭立心 |
| 作者单位： | 1. 湖北大学材料科学与工程学院,430062,武汉 2. 武汉理工大学材料学院,430070,武汉 3. 广东长大公路工程有限公司,510000,广州 |
| 摘 要： | 嘉绍跨江大桥承台大体积混凝土施工中，在承台没有设置冷却水管通水冷却的情况下，通过优化混凝土配合比，降低水泥用量，增加矿物掺合料用量，降低混凝土的水化温升，提高泵送施工性能和耐久性能，使承台混凝土各龄期的温度应力均小于混凝土同龄期的抗拉强度，未出现温度裂缝，满足设计要求。 |
| 关 键 词： | 大体积混凝土 海工混凝土 混凝土配合比 温度控制 温度监测 承台 |
TEMPERATURE CONTROL AND CONSTRUCTION OF BRIDGE PILE CAP MASSIVE CONCRETE |
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| HUANG Shao-long,L Yin,DING Qing-jun,TAN Li-xin.TEMPERATURE CONTROL AND CONSTRUCTION OF BRIDGE PILE CAP MASSIVE CONCRETE[J].Architecture Technology,2011,42(5):438-440. | |
| Authors: | HUANG Shao-long L Yin DING Qing-jun TAN Li-xin |
| Affiliation: | HUANG Shao-long,L(U) Yin,DING Qing-jun,TAN Li-xin |
| Abstract: | During massive concrete construction of the pile cap of Jiaxing-Shaoxing River-Crossing Bridge, the temperature stresses of base concrete at different ages are less than the tensile strength of concrete at the same age through optimization of concrete mix proportion, reduction of cement quantity, increase of mineral aggregate quantity, drop in concrete hydration temperature rise, improvement of pumping construction performance and durability. Temperature cracking doesn＇t appear and the design requirements are satisfied. |
| Keywords: | mass concrete marine concrete concrete mix proportion temperature control temperature monitoring pile cap |
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