气泡混凝土

气泡混凝土降温性能的试验研究及数值模拟

Experimental study and numerical simulation for the cooling performance of foam concrete

用气泡参数判定混凝土抗冻耐久性的探讨

Probe into Criterion of Concrete Anti-Freeze Durability with Bubble Parameter

使用轻质填充物取代粗骨料或混入闭合气泡是降低混凝土自重，制备轻质混凝土的主要途径。

It is popular to replace coarse aggregate with lightweight filler or induce closed-celled bubble to reduce the self-weight of concrete .

当混凝土所处环境经常发生冻融循环时，为满足其耐久性要求，必须将大量的稳定小气泡引入该混凝土中以产生质量足够好的孔隙系统，从而避免混凝土受到冻融破坏。

An adequate and stable air void system is the essential requirements for producing durable concrete that resists damage due to freezing and thawing cycles under saturated conditions .

公路长隧道二次衬砌施工中经常会出现施工冷缝、局部气泡、麻面、混凝土接缝错台等质量问题，二次衬砌施工进度滞后也是常见的现象。

Quality problems , such as construction cold joints , local bubbles , bug holes , staggered concrete joints , often arise in the secondary lining construction of long highway tunnels , and progress delay of the secondary lin-ing construction is a common phenomenon .