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Influence of Polycarboxylic-type Admixture on the Strength of Autoclaved Aerated Concrete
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作者 李敏 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2016年第6期1319-1322,共4页
The influence of polycarboxylic-type admixture on the strength of autoclaved aerated concrete(AAC) was investigated. The flexural strength and compressive strength of AAC with polycarboxylic admixture(PA) were tes... The influence of polycarboxylic-type admixture on the strength of autoclaved aerated concrete(AAC) was investigated. The flexural strength and compressive strength of AAC with polycarboxylic admixture(PA) were tested. The microstructure of AAC reinforced by PA was analyzed using scanning electron microscopic(SEM) methods. The crystal structure analysis of AAC with PA was also carried out using X-ray diffraction(XRD). The results showed that the compressive strength and flexural strength of AAC were increased by 43.9% and 42.8%, respectively, when 1.5wt% of PA was mixed. In addition, the dosage of admixture influenced the reinforcing effect. Admixture affected pore structure and surface characteristic of the products in autoclaved curing process and improved the formation of high crystallite tobermorite which led to the enhancement of the compressive and flexural strength of AAC. 展开更多
关键词 autoclaved aerated concrete tobermorite polycarboxylic admixture strength
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The application study of polycarboxylates water-reducing admixture in passenger dedicated line engineering
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作者 Huang Zhijiu 《Engineering Sciences》 EI 2012年第1期65-71,共7页
Polycarboxylate water-reducing admixture possesses the capability which could meet with the comprehensive performance of high performance concrete used in passenger dedicated line engineering.The problems of polycarbo... Polycarboxylate water-reducing admixture possesses the capability which could meet with the comprehensive performance of high performance concrete used in passenger dedicated line engineering.The problems of polycarboxylates water-reducing admixtures existed in the engineering application of were analyzed.At present the key for polycarboxylates application was to settle the compatibility between the water-reducing admixture and the cement and to keep the quality retention of this admixture. 展开更多
关键词 polycarboxylate water-reducing admixtures compatibility of cement quality retention high performance concrete
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