[1]霍润科,李 静,辛宏伟,等. 酸雨环境下砂岩的物理化学性质变化规律分析[J].西安建筑科技大学学报：自然版,2016,48(02):165-170.[doi:10.15986/j.1006-7930.2016.02. 003]
　HUO Runke,LI Jing,XIN Hongwei,et al.Regularity analysis on corrosion progressive and physical-chemical characteristic of sandstone subjected to Acid Rain[J].J.Xi’an Univ. of Arch. & Tech.：Natural Science Edition,2016,48(02):165-170.[doi:10.15986/j.1006-7930.2016.02. 003]
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 酸雨环境下砂岩的物理化学性质变化规律分析
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西安建筑科技大学学报：自然版[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年02期
页码:
165-170
栏目:
出版日期:
2016-04-28

文章信息/Info

Title:
Regularity analysis on corrosion progressive and physical-chemical characteristic of sandstone subjected to Acid Rain

文章编号:
1006-7930(2016)02-0165-06
作者:
霍润科; 李 静; 辛宏伟; 王 博
 西安建筑科技大学土木工程学院，陕西 西安 710055
Author(s):
HUO Runke;  LI Jing;  XIN Hongwei;  WANG Bo
School of Civil Engineering, Xi’an Univ.of Arch.&Tech., Xi’an 710055, China
关键词:
 ; 砂岩试样; 质量损失率; 孔隙率; 纵波波速; Na+溶解速率; Ca2+溶解速率
Keywords:
sandstone sample;  mass loss rate;  porosity;  P-wave velocity;  Na+ dissolution rate;  Ca2+ dissolution rate
分类号:
TU45
DOI:
10.15986/j.1006-7930.2016.02. 003
文献标志码:
A
摘要:
模拟室内加速腐蚀试验，研究了砂岩腐蚀不同阶段的物理力学性质变化规律及化学腐蚀机理，用定义的质量损失率、孔隙率和纵波波速来描述砂岩与不同浓度HCl 溶液反应的快慢程度并相互验证．试验结果表明，随浸泡时间延续质量损失率、孔隙率及纵波波速的关系呈现出阶段性特征，第40 d 时pH=2、pH=3.5 及pH=5 的酸溶液中质量损失率分别达到最大值
为0.432 %、0.405 %和0.281 %；在0~30 d 岩样孔隙产生较明显，纵波波速变化率也较大，30 d 之后岩样孔隙率增加缓慢，随之波速增加也较缓慢最终趋于平稳；第一阶段pH=2 溶液中Na+离子溶解速率在初期最大为264.78 mol/d，pH=3.5 及pH=5溶液Na+离子溶解速率在中期达到最大值，分别为102.28 mol/d 和79.67 mol/d，pH=2 的HCl 溶液中Ca2+溶解速率最大为489.50mol/d，分别是pH=3.5 及PH=5 溶液中Ca2+溶解速率的5 倍和4 倍．
Abstract:
Simulated indoor accelerated corrosion tests to study chemical corrosion and the variation mechanism of physical-mechanical properties of sandstone at different stages. With the mass loss rate ,porosity and P-wave velocity to describe reaction velocity in different concentrations of HCl solution and mutual authentication . The test results show that the relationship of the mass loss rate, porosity and P-wave velocity exhibit phase features with the immersion time .In 40 days the mass loss rate of PH=2, PH=3.5 and PH=5 acid solution reaches a maximum to 0.432%, 0.405% and 0.281%; in 0~30 days the porosity of rock sample produces more obvious , changing of P-wave velocity rate is larger, after 30 days the porosity of rock sample increases slowly, P-wave velocity changes slowly and finally tends to smooth; the first stage ,Na+ dissolution rate of PH=2 solution is up to 264.78 mol / d in the initial, Na+ dissolution rate of PH=3.5 and PH=5 solution reachs maximum respectively in the middle, 102.28 mol/d and 79.67 mol/d, Ca2+ dissolution rate of PH=2 HCl solution is up to 489.50 mol/d, which is 5 times and 4 times in PH=3.5 and PH=5 solution.

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备注/Memo

备注/Memo:
收稿日期：2015-08-17 修改稿日期：2016-04-08
基金项目：国家自然科学基金资助项目（41172237）；陕西省教育厅专项基金资助项目(11JK0947)
作者简介：霍润科（1963?）男，博士，教授，主要从事岩土工程与地下工程方面的教学和科研工作．E-mail：huorkdq@xauat.edu.cn
更新日期/Last Update: 2016-05-20