干旱区生态环境知识资源中心(Arid): PS材料模数、浓度对干旱区土建筑遗址加固效果的影响

Arid

	PS材料模数、浓度对干旱区土建筑遗址加固效果的影响
其他题名	IMPACT OF MODULUS AND CONCENTRATION OF POTASSIUM SILICATE MATERIAL ON CONSOLIDATING EARTHEN ARCHITECTURE SITES IN ARID REGION
	赵海英; 王旭东; 李最雄; 韩文峰; 郭青林; 谌文武; 王生新
ISSN	1000-6915
出版年	2006
卷号	25 期号:3 页码:557-562
中文摘要	PS材料对干旱区古遗址防风化加固具有良好的加固效果。20a的试验研究和现场加固表明，PS材料模数、浓度对加固效果的影响比较显著。通过试验分析表明：PS材料加固土的强度普遍提高，加固土强度随浓度的增加而递增，随PS材料模数的增大而递减；随着PS材料浓度的增大，加固土的抗风蚀、雨蚀能力显著提高，随模数的增大而有所降低；加固土的抗冻融能力显著提高，利于遗址在寒旱环境中保存，模数和浓度对加固土的耐冻性贡献均较大，以模数3．84、浓度5％时抗冻融性能最优；经PS材料加固后土密度及孔隙率变化不大，说明了土体经PS材料加固后仍具有良好的透气、透水性。综合考虑PS材料模数、浓度对加固效果的作用，优选加固液浓度为5％、模数为3．84。
英文摘要	It is a universal matter that the earthen architectures were eroded and deflated seriously under the specific climate in arid areas. It is fairly necessary to study the reinforcement of earth-structure sites. So, more attentions are paid to consolidate the earthen architecture using chemical techniques instead of traditional ones all over the world. Potassium silicate（PS） is an inorganic cementing-consolidating material of aqueous solution. It plays an effective role in protecting the earthen architecture sites from weathering in add region. 20 years＇ experimental researches and applications have proved that the effects of modulus and concentration of PS material on consolidation are noticeable. Experimental analysis indicates that the strength of consolidated soil by PS material has been improved generally. Both its strength and capability to prevent the erosion of wind and rain have been enhanced with the increase of concentration, while they reduce with the increase of modulus. In addition, the resistance of the consolidated soil to freeze-thaw has been improved, so it＇s helpful to preserve the earthen architecture in the arid-cold region. Meanwhile, the modulus and concentration have remarkable influence on its freeze-thaw resistance. It is the best for the concentration with 5% and the consolidated soil modulus with 3.84 to prevent freeze-thaw. The slight changes in density and porosity demonstrate that the consolidated soil still retains good gas permeability and water one. Based on the comprehensive consideration, the consolidation with concentration 5% and modulus 3.84 is optimal. On the basis of research and practice, it could be considered that the PS is an effective material for reinforcement of earthen architecture sites in Northwest China and has an ideal effectiveness.
中文关键词	土力学 ; PS材料 ; 模数 ; 浓度 ; 干旱区 ; 土建筑遗址 ; 加固效果
英文关键词	soil mechanics potassium silicate（PS）material modulus concentration arid region earthenarchitecture site consolidation effect
语种	中文
国家	中国
收录类别	CSCD
WOS类目	CONSTRUCTION BUILDING TECHNOLOGY
WOS研究方向	Construction & Building Technology
CSCD记录号	CSCD:2505571
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220313
作者单位	兰州大学土木工程与力学学院, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	赵海英,王旭东,李最雄,等. PS材料模数、浓度对干旱区土建筑遗址加固效果的影响[J]. 兰州大学,2006,25(3):557-562.
APA	赵海英.,王旭东.,李最雄.,韩文峰.,郭青林.,...&王生新.(2006).PS材料模数、浓度对干旱区土建筑遗址加固效果的影响.,25(3),557-562.
MLA	赵海英,et al."PS材料模数、浓度对干旱区土建筑遗址加固效果的影响".25.3(2006):557-562.