Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Unconfined basalt fiber cement silty soil with high compressive strength for roadbed in seasonal frozen region
The invention relates to the technical field of road engineering, in particular to unconfined high-compressive-strength basalt fiber cement silty soil for a subgrade in a seasonal frozen region, which is prepared by the following steps: S1, adding water into silty soil to prepare a soil sample with predetermined water content; s2, mixing cement and basalt fiber into the soil sample, setting n groups of mixing ratios, and then adding quantitative water to enable the water content of the soil sample to reach the optimal water content; s3, preparing m parallel samples according to each group of mix proportion in an impact forming manner; s4, wrapping the prepared sample with a preservative film, and putting the wrapped sample into a curing chamber for respective curing; s5, measuring the unconfined compressive strength value of the sample; and S6, selecting the optimal fiber mixing amount and the optimal curing time. According to the invention, the basalt fiber is doped into the cement silty soil, so that the unconfined compressive strength of the soil body is effectively improved, and the freeze-thaw resistance stability of the soil body is enhanced.
本发明涉及道路工程技术领域，具体涉及一种季冻区路基用无侧限抗压强度高的玄武岩纤维水泥粉砂土，包括以下步骤：S1：将水加入粉砂土中以配制出预定含水率的土样；S2：将水泥和玄武岩纤维掺入到土样中，并设置n组配合比，随后加入定量的水使土样含水率达到最佳含水率；S3：对每组配合比采用冲击成型的方式进行m个平行试样的制备；S4：对制备完成的试样采用保鲜膜包裹，并放至养护室中进行分别养护；S5：测定试样的无侧限抗压强度值；S6：选出最优纤维掺量、最优养护时间。本发明，通过在水泥粉砂土中掺入玄武岩纤维，有效提高了土体的无侧限抗压强度，增强了土体的抗冻融稳定性。
Unconfined basalt fiber cement silty soil with high compressive strength for roadbed in seasonal frozen region
The invention relates to the technical field of road engineering, in particular to unconfined high-compressive-strength basalt fiber cement silty soil for a subgrade in a seasonal frozen region, which is prepared by the following steps: S1, adding water into silty soil to prepare a soil sample with predetermined water content; s2, mixing cement and basalt fiber into the soil sample, setting n groups of mixing ratios, and then adding quantitative water to enable the water content of the soil sample to reach the optimal water content; s3, preparing m parallel samples according to each group of mix proportion in an impact forming manner; s4, wrapping the prepared sample with a preservative film, and putting the wrapped sample into a curing chamber for respective curing; s5, measuring the unconfined compressive strength value of the sample; and S6, selecting the optimal fiber mixing amount and the optimal curing time. According to the invention, the basalt fiber is doped into the cement silty soil, so that the unconfined compressive strength of the soil body is effectively improved, and the freeze-thaw resistance stability of the soil body is enhanced.
本发明涉及道路工程技术领域，具体涉及一种季冻区路基用无侧限抗压强度高的玄武岩纤维水泥粉砂土，包括以下步骤：S1：将水加入粉砂土中以配制出预定含水率的土样；S2：将水泥和玄武岩纤维掺入到土样中，并设置n组配合比，随后加入定量的水使土样含水率达到最佳含水率；S3：对每组配合比采用冲击成型的方式进行m个平行试样的制备；S4：对制备完成的试样采用保鲜膜包裹，并放至养护室中进行分别养护；S5：测定试样的无侧限抗压强度值；S6：选出最优纤维掺量、最优养护时间。本发明，通过在水泥粉砂土中掺入玄武岩纤维，有效提高了土体的无侧限抗压强度，增强了土体的抗冻融稳定性。
Unconfined basalt fiber cement silty soil with high compressive strength for roadbed in seasonal frozen region
一种季冻区路基用无侧限抗压强度高的玄武岩纤维水泥粉砂土
SUN SHUANG (Autor:in) / LIU XUE (Autor:in) / SHI CHENGLIN (Autor:in) / WANG XIAOBING (Autor:in) / ZHANG RUIXIN (Autor:in) / WU ZHENGYUN (Autor:in) / LIU PEIQI (Autor:in) / XU LINA (Autor:in) / HUANG ZHANFANG (Autor:in)
16.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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