养护龄期对二灰土工程特性的影响试验研究

Test and Study of Influence of Curing Time on Features of a Lime-flyash Soil Project

通过室内试验,分析了养护龄期及配合比对二灰土的抗剪性和压缩性的影响。试验表明二灰土的工程性能随龄期的增加而改善,在90d内最为明显;石灰含量一定时,强度随粉煤灰含量增加而增大,同时配合比1∶3∶6的强度具有最高的增长幅值,并且它的初期强度相对较高,压缩性较低。

Authors made some indoor tests and analyzed influences of curing time and match ratio on the shear resistance ability and compressibility of lime-flyash soil.Test data proved that engineering performances of lime-flyash soil will improve along with increase of curing time and this trend is very obvious in 90 days, that strength of lime-flyash soil will go up along with increase of content of flyash under the condition of a constant content of lime and that strength of lime-flyash soil with a specific match ratio 1∶3∶6,has maximum increase range and it has a higher beginning strength and lower compressibility than those with other match ratios.