水泥稳定炉渣碎石的强度性能

发布时间：2018-08-28 07:19

【摘要】：以生活垃圾焚烧炉渣集料替代部分天然集料制备水泥稳定炉渣碎石试件,然后通过无侧限抗压强度试验和劈裂试验测试试件的强度性能,分析了炉渣集料熟化时间及粒径、混合料养生龄期和养生温度、水泥用量对水泥稳定炉渣碎石强度性能的影响,并比较了水泥稳定炉渣碎石强度性能与水泥稳定碎石的差异.结果表明:炉渣集料压碎值随其熟化时间的延长而降低,水泥稳定炉渣碎石7d无侧限抗压强度随炉渣集料熟化时间的延长而提高;掺熟化30d炉渣集料(0~9.5mm)的水泥稳定炉渣碎石7d无侧限抗压强度达到4.0MPa;炉渣集料粒径越大,水泥稳定炉渣碎石7d无侧限抗压强度越低;水泥稳定炉渣碎石养生龄期越长、水泥用量越大、养生温度越高,其无侧限抗压强度和劈裂强度越高.
[Abstract]:Cement stabilized slag gravel specimens were prepared by replacing some natural aggregates with domestic waste incinerator slag aggregates. Then the aging time and particle size of slag aggregates were analyzed through unconfined compressive strength test and splitting test. The effects of curing age, curing temperature and cement content on the strength of cement stabilized slag crushed stone were studied, and the difference between cement stabilized slag gravel and cement stabilized gravel was compared. The results show that the crushing value of slag aggregate decreases with the increase of aging time, and the unconfined compressive strength of cement stabilized slag gravel increases with the prolongation of the aging time of slag aggregate. The unconfined compressive strength of cement stabilized slag aggregate (0~9.5mm) reached 4.0 MPA in 7 days, the larger the slag aggregate size, the lower the unconfined compressive strength of cement stabilized slag aggregate (0~9.5mm), the longer the life of cement stabilized slag gravel, the longer the life of cement stabilized slag gravel, the smaller the grain size of slag aggregate, the lower the unconfined compressive strength of cement stabilized slag aggregate for 7 days. The higher the cement content, the higher the curing temperature, the higher the unconfined compressive strength and splitting strength.
【作者单位】：同济大学道路与交通工程教育部重点实验室;
【分类号】：U414;U416.214

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