Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Improved expansive soil and preparation method thereof
The invention discloses improved expansive soil and a preparation method thereof, the improvement method of the expansive soil is to improve the expansive soil by using a modifier, and the modifier comprises slaked lime and bagasse fiber. The addition amount of the slaked lime is 2.5%-6.25% of the mass of the expansive soil, and the addition amount of the bagasse is 0.5%-2% of the mass of the expansive soil. The improvement method comprises the following steps: 1, completely mixing the improver and the expansive soil by using a mechanical stirrer; 2, determining the optimal water content of the mixed expansive soil according to a heavy compaction test in Road Geotechnical Test Regulations JTG E40-2007; and 3, adding water into the mixed expansive soil obtained in the step 1 according to the determined optimal water content, and covering the materials under natural conditions to obtain the improved expansive soil. According to the prepared improved expansive soil, the performance of the expansive soil is improved, and the expansion rate of the expansive soil is reduced. The influence of industrial waste byproducts on the environment is favorably solved, and the requirement of green and sustainable development is met.
本发明公开了一种改良性膨胀土及其制备方法，膨胀土的改良方法是使用改良剂对膨胀土进行改良处理，改良剂包括熟石灰、甘蔗渣纤维。熟石灰的加入量为膨胀土质量的2.5％～6.25％，甘蔗渣的加入量为膨胀土质量的0.5％～2％。改良步骤如下：1、将改良剂和膨胀土使用机械搅拌机完全混合；2、按照《公路土工试验规程》JTG E40‑2007中重型击实试验确定混合膨胀土的最佳含水率；3、按确定的最佳含水率的含水量添加水到步骤1得到的混合膨胀土中，在自然条件下闷料，得到改良膨胀土。本发明制得的的改良型膨胀土改善了膨胀土的性能，降低了膨胀土的膨胀率。有助于解决工业废物副产品对环境的影响，符合绿色可持续发展的要求。
Improved expansive soil and preparation method thereof
The invention discloses improved expansive soil and a preparation method thereof, the improvement method of the expansive soil is to improve the expansive soil by using a modifier, and the modifier comprises slaked lime and bagasse fiber. The addition amount of the slaked lime is 2.5%-6.25% of the mass of the expansive soil, and the addition amount of the bagasse is 0.5%-2% of the mass of the expansive soil. The improvement method comprises the following steps: 1, completely mixing the improver and the expansive soil by using a mechanical stirrer; 2, determining the optimal water content of the mixed expansive soil according to a heavy compaction test in Road Geotechnical Test Regulations JTG E40-2007; and 3, adding water into the mixed expansive soil obtained in the step 1 according to the determined optimal water content, and covering the materials under natural conditions to obtain the improved expansive soil. According to the prepared improved expansive soil, the performance of the expansive soil is improved, and the expansion rate of the expansive soil is reduced. The influence of industrial waste byproducts on the environment is favorably solved, and the requirement of green and sustainable development is met.
本发明公开了一种改良性膨胀土及其制备方法，膨胀土的改良方法是使用改良剂对膨胀土进行改良处理，改良剂包括熟石灰、甘蔗渣纤维。熟石灰的加入量为膨胀土质量的2.5％～6.25％，甘蔗渣的加入量为膨胀土质量的0.5％～2％。改良步骤如下：1、将改良剂和膨胀土使用机械搅拌机完全混合；2、按照《公路土工试验规程》JTG E40‑2007中重型击实试验确定混合膨胀土的最佳含水率；3、按确定的最佳含水率的含水量添加水到步骤1得到的混合膨胀土中，在自然条件下闷料，得到改良膨胀土。本发明制得的的改良型膨胀土改善了膨胀土的性能，降低了膨胀土的膨胀率。有助于解决工业废物副产品对环境的影响，符合绿色可持续发展的要求。
Improved expansive soil and preparation method thereof
改良性膨胀土及其制备方法
LI LIHUA (Autor:in) / JIA ZHIYONG (Autor:in) / XIAO HENGLIN (Autor:in) / LIU SHUHUA (Autor:in) / LI WENTAO (Autor:in) / HUANG SHAOPING (Autor:in) / CHEN ZHI (Autor:in) / BAI YUXIA (Autor:in) / ZHENG LIFEI (Autor:in)
18.07.2023
Patent
Elektronische Ressource
Chinesisch
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