Journal of Asian Architecture and Building Engineering ( IF 1.3 ) Pub Date : 2021-05-24 , DOI: 10.1080/13467581.2021.1928505 Shiqiang Fang 1, 2 , Chenglei Meng 2 , Kun Zhang 3 , Hu Wenjing 1 , Xiaobin Liu 4
ABSTRACT
In this work, the performance and mechanism of a Chinese traditional sucrose-modified rammed earth-lime were discussed in lab for its potential utilization in the restoration of rammed earth-lime architectural heritages. The results showed that the addition of sucrose would effectively improve compressive strength and wet-dry resistance of rammed earth-lime. The addition of sucrose would markedly increase the concentration of Ca2+ in pore solution and prolong the duration of high temperature, thereby making the microstructures of the rammed earth-lime much more compact and improve the formation of C-S-H gel. These may be the reasons for the better performance of sucrose-modified rammed earth-lime. In general, the optimal amount of added sucrose was about 1–3 % by weight of the total mortar.