Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mass concrete temperature matching curing method
The invention discloses a temperature matching curing method for mass concrete. The temperature matching curing method comprises the steps that a cooling water circulation system is designed; concrete is mixed and poured; after each layer of circulating cooling water pipe is covered by concrete and is vibrated for a certain time, the layer of cooling water pipe can be started to supply water for cooling water circulation; after concrete pouring is completed, concrete setting and hardening conditions are observed, the top of the concrete member is immediately covered with a plastic film after initial setting, and the volume V of a water storage tank of the cooling water circulation system and the amount of circulating water pumped out of the water storage tank are controlled according to the area S of the top face of the concrete member. By means of internal cooling water cooling and external cooling circulating water storage and heat preservation, the internal and external temperature difference and the cooling rate of the mass concrete member can be effectively controlled, the internal and external temperature difference is obviously lower than the 25 DEG C control requirement of existing specifications and technologies, and the cooling rate is obviously lower than the 2-3 DEG C/d control requirement of the existing specifications and technologies; the problem of cracks of mass concrete in the prior art is solved.
本申请公开了一种大体积混凝土温度匹配养护方法，包括：冷却水循环系统的设计；拌制并浇筑混凝土；每层循环冷却水管被混凝土覆盖并振捣完毕一定时间后，可启动该层冷却水管通水进行冷却水循环；当混凝土浇筑完成后，观测混凝土凝结硬化情况，初凝后立即在混凝土构件顶部覆盖塑料薄膜，并按照混凝土构件顶面的面积S大小，控制冷却水循环系统的储水箱容积V及抽取储水箱的循环水量。本申请通过内部冷却水降温，外部冷却循环水蓄水保温的方式，可有效控制大体积混凝土构件的内外温差和降温速率，内外温差显著低于现有规范和技术的25℃控制要求，降温速率显著低于现有规范和技术的2‑3℃/d控制要求，克服了现有技术大体积混凝土出现裂缝的问题。
Mass concrete temperature matching curing method
The invention discloses a temperature matching curing method for mass concrete. The temperature matching curing method comprises the steps that a cooling water circulation system is designed; concrete is mixed and poured; after each layer of circulating cooling water pipe is covered by concrete and is vibrated for a certain time, the layer of cooling water pipe can be started to supply water for cooling water circulation; after concrete pouring is completed, concrete setting and hardening conditions are observed, the top of the concrete member is immediately covered with a plastic film after initial setting, and the volume V of a water storage tank of the cooling water circulation system and the amount of circulating water pumped out of the water storage tank are controlled according to the area S of the top face of the concrete member. By means of internal cooling water cooling and external cooling circulating water storage and heat preservation, the internal and external temperature difference and the cooling rate of the mass concrete member can be effectively controlled, the internal and external temperature difference is obviously lower than the 25 DEG C control requirement of existing specifications and technologies, and the cooling rate is obviously lower than the 2-3 DEG C/d control requirement of the existing specifications and technologies; the problem of cracks of mass concrete in the prior art is solved.
本申请公开了一种大体积混凝土温度匹配养护方法，包括：冷却水循环系统的设计；拌制并浇筑混凝土；每层循环冷却水管被混凝土覆盖并振捣完毕一定时间后，可启动该层冷却水管通水进行冷却水循环；当混凝土浇筑完成后，观测混凝土凝结硬化情况，初凝后立即在混凝土构件顶部覆盖塑料薄膜，并按照混凝土构件顶面的面积S大小，控制冷却水循环系统的储水箱容积V及抽取储水箱的循环水量。本申请通过内部冷却水降温，外部冷却循环水蓄水保温的方式，可有效控制大体积混凝土构件的内外温差和降温速率，内外温差显著低于现有规范和技术的25℃控制要求，降温速率显著低于现有规范和技术的2‑3℃/d控制要求，克服了现有技术大体积混凝土出现裂缝的问题。
Mass concrete temperature matching curing method
一种大体积混凝土温度匹配养护方法
WANG CHENGQI (Autor:in) / LU HU (Autor:in) / YANG HUI (Autor:in) / TIAN XIN (Autor:in)
04.10.2022
Patent
Elektronische Ressource
Chinesisch
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