西北师范大学学报（自然科学版）2025，Vol.61Issue(5)：36-44,9.DOI:10.16783/j.cnki.nwnuz.2025.05.004
新型石窟寺裂隙灌浆材料水硬性石灰H·C5和NHL5性能对比研究
Properties comparison of novel hydraulic limes H·C5 and NHL5 as fissure grouting materials for grotto temples
摘要
Abstract
Hydraulic lime,with both air-hardening and hydraulic properties,is an important restoration material for fissure grouting in grotto temples.However,high-quality hydraulic lime has long been depended on imports and is expensive,which severely restricts its widespread application.To explore the feasibility of replacing imported natural hydraulic lime(NHL5)with domestic hydraulic lime(H·C5)developed by the research team,X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),and scanning electron microscopy(SEM)were used to analyze the composition and micromorphology of hydration and carbonation products in the cement-sand set bodies of H·C5 and NHL5 at different curing ages.Meanwhile,physicomechanical properties such as shrinkage rate,elastic wave velocity,flexural and compressive strengths,and durability were measured.In addition,comparative tests on the bonding performance between mortar and typical sandstone samples from Qingyang Beishiku Temple were conducted to evaluate their on-site applicability.The results showed that H·C5 and NHL5 have similar chemical compositions and nearly the same shrinkage rate.Within the curing period,H·C5 is superior to NHL5 in terms of elastic wave velocity,flexural and compressive strengths,and bonding performance,indicating that H·C5 has good mechanical strength and structural stability.It can serve as an effective domestic alternative to NHL5,which is expected to significantly reduce the cost of rock mass reinforcement in grotto temples,and promote the independent research and development sustainable development of protection materials for rock and soil cultural relics in China.关键词
裂隙灌浆/水硬性石灰/材料性能/石窟寺Key words
fissure grouting/hydraulic lime/material properties/grotto temples分类
建筑与水利引用本文复制引用
崔建勤,方晓芸,周应庆,李志鹏,王海燕,杨善龙,赵林毅..新型石窟寺裂隙灌浆材料水硬性石灰H·C5和NHL5性能对比研究[J].西北师范大学学报（自然科学版）,2025,61(5):36-44,9.基金项目
甘肃省科技重大专项计划项目(22ZD6GA030) （22ZD6GA030）
甘肃省重大专项科技计划项目(中央引导地方科技发展资金25ZYJA004) （中央引导地方科技发展资金25ZYJA004）
甘肃省重点人才项目(2025RCXM78) （2025RCXM78）
甘肃省科技专员专项(24CXGA004) （24CXGA004）
