Foamed concrete has the advantages of light weight,heat preservation,fire resistance,sound insulation and seismic resistance.It is widely used in construction engineering,underground engineering,agricultural engineering,water conservancy irrigation engineering and seismic engineering.At present,the mix design method of foamed concrete is based on dry density.It is of engineering significance to design and prepare foamed concrete with different air content according to the air content of foamed concrete.The design method of foamed concrete mixture ratio based on air content is proposed.The test results show that the design method of foamed concrete mixture ratio based on air content is effective.The air content of foamed concrete has a certain correlation with dry density,compressive strength and softening coefficient,and the dry density decreases proportionally with the increase of air content,showing a linear negative correlation.The compressive strength decreases with the increase of air content,which conforms to the law of exponential function.The softening coefficient decreases with the increase of air content.
关键词
泡沫混凝土/含气量/配合比设计/真空饱水法/干密度
Key words
foamed concrete/air content/mix design/vacuum saturation method/dry density
万方数据