Experimental Study on Restoration Materials of Newly Earthen Ruins under Different Slaking Times

被引：3

作者：

Yue, Jianwei ^{[1
,2
,3
]}

Li, Wenhao ^{[1
]}

Zhu, Xiang ^{[1
]}

Kong, Qingmei ^{[1
]}

Huang, Xuanjia ^{[1
]}

Yang, Xue ^{[1
]}

Han, Zhiguang ^{[1
]}

机构：

[1] Henan Univ, Sch Civil Engn & Architecture, Kaifeng 475004, Peoples R China

[2] Key Lab Restorat & Safety Evaluat Immovable Cultu, Kaifeng 475004, Peoples R China

[3] Henan Univ, Key Res Inst Yellow River Civilizat & Sustainable, Kaifeng 475004, Peoples R China

来源：

MATERIALS | 2022年 / 15卷 / 12期

基金：

中国国家自然科学基金;

关键词：

earthen ruins; slaking time; restoration materials; compressive strength; pH value; MECHANICAL-PROPERTIES; CARBONATION; MGO; PERFORMANCE; STRENGTH;

D O I：

10.3390/ma15124356

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The newly repaired Kaifeng City Wall has serious cracks, shedding and other issues on the surface, which constitute a significant problem. It is of great significance for the restoration of Kaifeng City Wall to explore the repair materials and techniques suitable for Kaifeng City Wall. The pH, particle gradation, compressive strength and SEM were tested on soil samples with different lime and MgO contents under different slaking times. With the increase of slaking time, the pH value first increased and then decreased. The relationship between pH value and strength showed three stages. The strength of lime-containing soil samples increased first, then decreased and then increased. The MgO content of soil samples showed an opposite trend. The particle gradation was significantly improved with increasing aging time. The main reason for the reduction of soil strength is the calcium carbonate crystals and magnesite microcracks produced by lime and MgO in the later stage of slaking.

引用

页数：20

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