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High-molecular polymer doped calcareous sand and preparation method thereof
The invention provides high-molecular polymer doped calcareous sand and a preparation method thereof.The preparation method comprises the steps that calcareous sand is taken and subjected to an activation reaction through a hydrochloric acid solution, a polyethylene glycol polymer and absolute ethyl alcohol are added into activated calcareous sand powder, the pH is adjusted to 9-10, and after stirring and drying are conducted, the calcareous sand is obtained; the polyethylene glycol polymer is obtained by reacting polymethyl methacrylate with polyethylene glycol with a methacrylic acid group. Calcareous sand is doped with the polyethylene glycol polymer, high-molecular polymer doped calcareous sand is obtained, compared with untreated calcareous sand, the unconfined compressive strength of the high-molecular polymer doped calcareous sand is improved, the shear strength of the high-molecular polymer doped calcareous sand is improved, the cohesive force is 28.8-30.5 kPa, and the compressive strength of the high-molecular polymer doped calcareous sand is higher than that of the untreated calcareous sand. The structure of a soil body is improved, and the strength of the soil body is improved.
本发明提出了一种高分子聚合物掺杂的钙质砂及其制备方法，包括取钙质砂采用盐酸溶液进行活化反应，在活化钙质砂粉末中加入聚乙二醇聚合物和无水乙醇，调节pH至9～10，搅拌，干燥后，得所述钙质砂；所述聚乙二醇聚合物由聚甲基丙烯酸甲酯和带有甲基丙烯酸基的聚乙二醇反应而得。本发明提供的聚乙二醇聚合物对钙质砂进行掺杂，得到高分子聚合物掺杂的钙质砂，经过高分子掺杂的钙质砂比未处理的钙质砂相比，其无侧限抗压强度有所提升，经过高分子掺杂的钙质砂的抗剪强度增加，粘聚力为28.8～30.5kPa，其有助于改善土体结构并提升土体强度。
High-molecular polymer doped calcareous sand and preparation method thereof
The invention provides high-molecular polymer doped calcareous sand and a preparation method thereof.The preparation method comprises the steps that calcareous sand is taken and subjected to an activation reaction through a hydrochloric acid solution, a polyethylene glycol polymer and absolute ethyl alcohol are added into activated calcareous sand powder, the pH is adjusted to 9-10, and after stirring and drying are conducted, the calcareous sand is obtained; the polyethylene glycol polymer is obtained by reacting polymethyl methacrylate with polyethylene glycol with a methacrylic acid group. Calcareous sand is doped with the polyethylene glycol polymer, high-molecular polymer doped calcareous sand is obtained, compared with untreated calcareous sand, the unconfined compressive strength of the high-molecular polymer doped calcareous sand is improved, the shear strength of the high-molecular polymer doped calcareous sand is improved, the cohesive force is 28.8-30.5 kPa, and the compressive strength of the high-molecular polymer doped calcareous sand is higher than that of the untreated calcareous sand. The structure of a soil body is improved, and the strength of the soil body is improved.
本发明提出了一种高分子聚合物掺杂的钙质砂及其制备方法，包括取钙质砂采用盐酸溶液进行活化反应，在活化钙质砂粉末中加入聚乙二醇聚合物和无水乙醇，调节pH至9～10，搅拌，干燥后，得所述钙质砂；所述聚乙二醇聚合物由聚甲基丙烯酸甲酯和带有甲基丙烯酸基的聚乙二醇反应而得。本发明提供的聚乙二醇聚合物对钙质砂进行掺杂，得到高分子聚合物掺杂的钙质砂，经过高分子掺杂的钙质砂比未处理的钙质砂相比，其无侧限抗压强度有所提升，经过高分子掺杂的钙质砂的抗剪强度增加，粘聚力为28.8～30.5kPa，其有助于改善土体结构并提升土体强度。
High-molecular polymer doped calcareous sand and preparation method thereof
一种高分子聚合物掺杂的钙质砂及其制备方法
HU JUN (author) / ZHANG SHUAI (author) / LIU BING (author) / WEI KAI (author) / ZENG DONGLING (author) / JIA LIN (author) / WANG ZHIXIN (author) / LI YU (author) / HUANG LUYAN (author)
2024-03-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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