价值工程
價值工程
개치공정
VALUE ENGINEERING
2014年
13期
109-111
,共3页
砂浆%酸性环境%pH值%硫酸根浓度%物理力学性能
砂漿%痠性環境%pH值%硫痠根濃度%物理力學性能
사장%산성배경%pH치%류산근농도%물리역학성능
mortar%acidic environment%pH value%sulfate concentration%physical and mechanical performance
采用酸性环境下加速试验的方法，研究了不同酸性环境对砂浆物理力学性能的影响。对不同pH值硝酸环境下和pH=1时不同硫酸根浓度在各个腐蚀阶段砂浆的质量变化和抗压强度变化进行比较分析，试验中选取两种水泥材料进行比对试验。结果表明：溶液pH值对水泥砂浆物理力学性能劣化影响有很大影响，随酸性的增强砂浆性能劣化速率加剧；在强酸溶液中，硫酸根离子浓度较高时对砂浆的腐蚀性较强。
採用痠性環境下加速試驗的方法，研究瞭不同痠性環境對砂漿物理力學性能的影響。對不同pH值硝痠環境下和pH=1時不同硫痠根濃度在各箇腐蝕階段砂漿的質量變化和抗壓彊度變化進行比較分析，試驗中選取兩種水泥材料進行比對試驗。結果錶明：溶液pH值對水泥砂漿物理力學性能劣化影響有很大影響，隨痠性的增彊砂漿性能劣化速率加劇；在彊痠溶液中，硫痠根離子濃度較高時對砂漿的腐蝕性較彊。
채용산성배경하가속시험적방법，연구료불동산성배경대사장물리역학성능적영향。대불동pH치초산배경하화pH=1시불동류산근농도재각개부식계단사장적질량변화화항압강도변화진행비교분석，시험중선취량충수니재료진행비대시험。결과표명：용액pH치대수니사장물리역학성능열화영향유흔대영향，수산성적증강사장성능열화속솔가극；재강산용액중，류산근리자농도교고시대사장적부식성교강。
The accelerated test is adopted under acid environment to study the impact of different acid environment on the physical and mechanical properties of cement mortar. Comparative analysis is done to the quality changes of mortar with different pH value under nitric acid environment and pH=1 at different concentration of sulfuric acid root in each stage of corrosion and the compressive strength. Two cement materials are selected for the comparative test. The results show that the solution pH value of cement mortar has a great impact on the physical and mechanical performance degradation. With the acidic enhancement, the mortar performance degradation rate intensifies. In strong acid solution, higher sulfate ion concentration has stronger corrosion of cement mortar.
