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将粒径小于等于2mm的炉渣颗粒配比成一定含水率,通过分层击实制成初始制样干密度为ρd=1.4、1.5和1.6g/cm~3的试样,试样高80mm、直径39.1mm。不同干密度的试样分别进行龄期为3、7、14、28、45和60d无侧限抗压强度试验。为研究试样饱和后的强度变化,进行干密度为1.5g/cm~3,龄期3、7、14和28d的饱和试样无侧限抗压强度试验。通过试验,研究了非饱和炉渣试样的强度、割线模量随龄期和干密度的变化趋势,得出炉渣的强度、割线模量变化具有较大的离散性,但总体上随龄期和干密度的增加而增加。试样饱和后强度将降低30%左右,在实际工程中应注意防水保护。并且对炉渣材料做XRD分析,以获得炉渣的主要成分以便更好地了解炉渣试样的强度特性。
The particle size of less than or equal to 2mm slag particles ratio to a certain water content, by densification compaction made of the initial sample dry density ρd = 1.4, 1.5 and 1.6g / cm ~ 3 samples, the sample height 80mm, Diameter 39.1mm. Samples with different dry densities were subjected to unconfined compressive strength tests of 3, 7, 14, 28, 45 and 60 days respectively. In order to study the change of strength after saturation, the unconfined compressive strength tests of saturated specimens with 1.5 g / cm ~ 3 dry density and 3, 7, 14 and 28 days were carried out. Through the experiment, the strength and secant modulus of unsaturated slag samples were studied. The trend of strength and secant modulus of slag with large variation was found. However, with age Increased period and dry density. The strength of the sample after saturation will be reduced by about 30%, in the actual project should pay attention to waterproof protection. And the slag material was subjected to XRD analysis to obtain the main components of the slag in order to better understand the strength characteristics of the slag sample.