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- Title
CO<sub>2</sub> 对 C30 混凝土性能的影响及其 作用机理.
- Authors
曹伟达; 武云鹏
- Abstract
The influence of CO2 introduction during the mixing on the workability, strength, volume stability and durability of C30 concrete was studied through industrial scale experiment. The experiment results indicate that the CO2 would improve the strength and durability of the concrete, slightly affect its volume stability, but significant affect its workability. The analysis of hydration heat, pore structure and scanning electron microscope shows that these effects of CO2 on concrete are caused by the CO2 promotion on the hydrolysis of cement particle and the formation of hydration product. The as-prepared C30 concrete with CO2 has similar properties to C35 concrete, but less CO2 emission of 10.82 kg/m³ during the concrete manufacturing stage, having better emission reduction benefits
- Subjects
CONCRETE durability; HEAT of hydration; SCANNING electron microscopes; GREENHOUSE gas mitigation; POROSITY; HYDROLYSIS
- Publication
New Building Materials / Xinxing Jianzhu Cailiao, 2022, Issue 12, p22
- ISSN
1001-702X
- Publication type
Article