Effect of Various Additives and Aeration on the Properties of Lightweight Concrete

Šahmenko, Genādijs; Namsone, Eva; Rubenis, Kristaps; Dubņika, Arita; Niparts, Guntars

doi:10.4028/www.scientific.net/kem.762.351

Cited by 4 publications

(1 citation statement)

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“…As a result, gas content, expansion degree and porosity are all on the rise. Thus, the test block will expand in size, reducing the dry density [16,17]. Through linear interpolation, it is learned that the dry density of the CAC block reached the level for qualified product (<750kg• m -3 ), when the mix ratio of the foaming agent was above 0.09%, and reached the level for superior product (<725kg• m -3 ), when the mix ratio of the foaming agent was above 0.12%.…”

Section: Figure 2 Influence Of Foaming Agent On Dry Density Of the Cmentioning

confidence: 99%

Influence of Foaming Agent on Technical Performance of Ceramsite Aerated Concrete Blocks

Wang¹,

Wu²,

Zheng³

et al. 2019

ACSM

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The dosage of the foaming agent directly affects the technical performance of ceramsite aerated concrete (CAC). If the dosage is improper, the CAC will be difficult to prepare and unstable in technical performance. To improve the quality of the CAC blocks, this paper aims to disclose how the mix ratio of foaming agent affects the technical performance of the CAC blocks through experiments. Specifically, the CA5.0B07 CAC blocks were selected as the research object. The following indices were identified to characterize the technical performance of the CAC blocks, including workability, dry density, water absorption, compressive strength and thermal conductivity. Several CAC blocks were prepared with different mix ratios of the foaming agent: 0.05%, 0.10%, 0.15%, 0.20% and 0.25%. The mix ratios were determined empirically, and refer to the mass percentage of the foaming agent in the binding material. In addition, the linear interpolation was adopted to determine the rational interval of foaming agent dosage for the CAC blocks. The results show that the CAC blocks reached the technical levels for qualified product in current standards when the mix ratio of the foaming agent fell within 0.13%~0.23%, and those for superior product when the latter fell within 0.15%~0.20%. The research results provide a technical guide for actual production of the CAC blocks, and promotes the application of these blocks in the construction of energyefficient buildings.

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Section: Figure 2 Influence Of Foaming Agent On Dry Density Of the Cmentioning

confidence: 99%