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A platform for research: civil engineering, architecture and urbanism
Curing agent for acidic rock soil and curing method of acidic rock soil
The invention belongs to the technical field of roadbed curing, and relates to a curing agent for acidic rock soil and a curing method of the acidic rock soil. The concrete comprises the following components in parts by weight: 100 parts of cement; 15 to 20 parts of a mixed activator; 0.2 to 1 part of an ionic admixture; and 1-2 parts of a mixed salt solution. According to the invention, the introduction of the ionic admixture and the mixed salt solution provides additional Ca < 2 + > ions, and Mg < 2 + >, Al < 3 + > and other high-valence cations can be replaced with low-valence cations adsorbed on the surfaces of rock-soil particles through the ion exchange effect, so that the thickness of double electric layers on the surfaces of the rock-soil particles is reduced, and the compaction characteristic of the solidified soil is improved. Meanwhile, the pH value of a solidified soil system is increased, on the basis, the reaction activity is improved by introducing the mixed exciting agent, hydration reaction is promoted, more CSH and CAH gel is generated, the strength of the solidified soil is improved, and the compact degree of the solidified soil structure is increased.
本发明属于路基固化技术领域，涉及一种酸性岩土用固化剂及一种酸性岩土的固化方法。按照重量份数计算，包括如下组分：水泥100份；混合激发剂15~20份；离子外加剂0.2~1份；混合盐溶液1~2份。本申请中，离子外加剂和混合盐溶液的引入提供了额外的Ca2+离子，且含有Mg2+、Al3+等高价阳离子，能够通过离子交换作用，与岩土颗粒表面吸附的低价阳离子进行置换，从而减小岩土颗粒表面双电层厚度，提高固化土的压实特性。同时也提升了固化土体系的pH，在此基础上，混合激发剂的引入提高了反应活性，促进了水化反应的进行，生成更多的CSH和CAH凝胶，提高了固化土的强度，增加了固化土结构的致密程度。
Curing agent for acidic rock soil and curing method of acidic rock soil
The invention belongs to the technical field of roadbed curing, and relates to a curing agent for acidic rock soil and a curing method of the acidic rock soil. The concrete comprises the following components in parts by weight: 100 parts of cement; 15 to 20 parts of a mixed activator; 0.2 to 1 part of an ionic admixture; and 1-2 parts of a mixed salt solution. According to the invention, the introduction of the ionic admixture and the mixed salt solution provides additional Ca < 2 + > ions, and Mg < 2 + >, Al < 3 + > and other high-valence cations can be replaced with low-valence cations adsorbed on the surfaces of rock-soil particles through the ion exchange effect, so that the thickness of double electric layers on the surfaces of the rock-soil particles is reduced, and the compaction characteristic of the solidified soil is improved. Meanwhile, the pH value of a solidified soil system is increased, on the basis, the reaction activity is improved by introducing the mixed exciting agent, hydration reaction is promoted, more CSH and CAH gel is generated, the strength of the solidified soil is improved, and the compact degree of the solidified soil structure is increased.
本发明属于路基固化技术领域，涉及一种酸性岩土用固化剂及一种酸性岩土的固化方法。按照重量份数计算，包括如下组分：水泥100份；混合激发剂15~20份；离子外加剂0.2~1份；混合盐溶液1~2份。本申请中，离子外加剂和混合盐溶液的引入提供了额外的Ca2+离子，且含有Mg2+、Al3+等高价阳离子，能够通过离子交换作用，与岩土颗粒表面吸附的低价阳离子进行置换，从而减小岩土颗粒表面双电层厚度，提高固化土的压实特性。同时也提升了固化土体系的pH，在此基础上，混合激发剂的引入提高了反应活性，促进了水化反应的进行，生成更多的CSH和CAH凝胶，提高了固化土的强度，增加了固化土结构的致密程度。
Curing agent for acidic rock soil and curing method of acidic rock soil
一种酸性岩土用固化剂及酸性岩土的固化方法
LIU XIAOFAN (author) / WU HANG (author) / CHEN JIAN (author) / LU MO (author) / TANG LIN (author) / CHEN HAI (author) / GAN YUNFENG (author) / WU CHANGBIAO (author) / YANG WENBING (author) / LI XINGLAI (author)
2024-06-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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