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A platform for research: civil engineering, architecture and urbanism
Concrete cracking control method in ultrahigh altitude environment
The invention discloses a concrete cracking control method in an ultrahigh altitude environment, and relates to the field of concrete construction, and the technical scheme of the invention comprises the following steps: S1, cracking risk assessment; s2, determining a concrete proportion; s3, building a constant-temperature tent, spraying a thermal insulation coating and mounting a template; s4, arranging a sensor; s5, concrete pouring, maintenance and form removal are carried out; s6, spraying a concrete curing agent on the pier body; s7, heat preservation layer wrapping and water supply maintenance; and S8, concrete deformation and cracking risk dynamic regulation and control. By optimizing the mix proportion, reducing the absolute peak temperature and introducing the prepared anti-cracking agent adapting to the ultrahigh altitude environment, the shrinkage deformation of the concrete is controlled in the whole process and in stages, so that the concrete is in a micro-expansion state, and the internal tensile stress is reduced; and through a series of measures such as temperature rise, temperature drop, dry shrinkage reduction after form removal, temperature control, intelligent maintenance and monitoring regulation and control means, concrete cracking prevention and control under the ultrahigh altitude extreme environment are achieved.
本发明公开了一种超高海拔环境下混凝土开裂控制方法，涉及混凝土施工领域，本发明的技术方案包括如下步骤：S1，开裂风险评估；S2，确定混凝土配比；S3，搭建恒温篷、喷涂保温涂料和安装模板；S4，布设传感器；S5，混凝土浇筑、养护和拆模；S6，墩身喷涂混凝土养护剂；S7，包裹保温层和供水养护；S8，混凝土变形及开裂风险动态调控。通过优化配合比，降低绝对峰值温度，引入制备的适应超高海拔环境的抗裂剂，全过程、分阶段控制混凝土收缩变形，使混凝土处于微膨胀状态，减小内部拉应力，并通过温升、温降及拆模后的减干缩、温控与智能养护及监测调控手段等一系列措施，实现超高海拔极端环境下混凝土开裂防治。
Concrete cracking control method in ultrahigh altitude environment
The invention discloses a concrete cracking control method in an ultrahigh altitude environment, and relates to the field of concrete construction, and the technical scheme of the invention comprises the following steps: S1, cracking risk assessment; s2, determining a concrete proportion; s3, building a constant-temperature tent, spraying a thermal insulation coating and mounting a template; s4, arranging a sensor; s5, concrete pouring, maintenance and form removal are carried out; s6, spraying a concrete curing agent on the pier body; s7, heat preservation layer wrapping and water supply maintenance; and S8, concrete deformation and cracking risk dynamic regulation and control. By optimizing the mix proportion, reducing the absolute peak temperature and introducing the prepared anti-cracking agent adapting to the ultrahigh altitude environment, the shrinkage deformation of the concrete is controlled in the whole process and in stages, so that the concrete is in a micro-expansion state, and the internal tensile stress is reduced; and through a series of measures such as temperature rise, temperature drop, dry shrinkage reduction after form removal, temperature control, intelligent maintenance and monitoring regulation and control means, concrete cracking prevention and control under the ultrahigh altitude extreme environment are achieved.
本发明公开了一种超高海拔环境下混凝土开裂控制方法，涉及混凝土施工领域，本发明的技术方案包括如下步骤：S1，开裂风险评估；S2，确定混凝土配比；S3，搭建恒温篷、喷涂保温涂料和安装模板；S4，布设传感器；S5，混凝土浇筑、养护和拆模；S6，墩身喷涂混凝土养护剂；S7，包裹保温层和供水养护；S8，混凝土变形及开裂风险动态调控。通过优化配合比，降低绝对峰值温度，引入制备的适应超高海拔环境的抗裂剂，全过程、分阶段控制混凝土收缩变形，使混凝土处于微膨胀状态，减小内部拉应力，并通过温升、温降及拆模后的减干缩、温控与智能养护及监测调控手段等一系列措施，实现超高海拔极端环境下混凝土开裂防治。
Concrete cracking control method in ultrahigh altitude environment
一种超高海拔环境下混凝土开裂控制方法
HU XIAOCHUAN (author) / DING XUEZHENG (author) / YAO ZAIFENG (author) / LIU SIDA (author) / LI MING (author) / LIAO JUAN (author) / GUAN MINQUAN (author)
2024-01-05
Patent
Electronic Resource
Chinese
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