苏州混凝土水泥制品研究院有限公司

头部文案

发布时间:2020-01-06 00:00:00
全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊(光盘版)全文收录期刊
华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊
高温水热养护砂浆的硫酸盐早期侵蚀特征研究
Characteristic Research of Sulfate Attack in Early for High Temperature Water Heat-curing Mortar
2017年第5期
铝酸三钙;水热养护;硫酸盐侵蚀;高抗硫酸盐水泥
Tricalcium aluminate; Water heat-curing; Sulfate attack; High sulfate resistant cement
2017年第5期
1000-4637(2017)05-05-06
国家重点基础研究发展计划(973计划)(2015CB655105);国家自然科学基金青年基金项目(51308262);江苏省自然科学基金青年基金项目(BK20131012)
阳凯丽1,刘加平1,2,穆 松3
1.重庆大学材料科学与工程学院,400045;2.东南大学材料科学与工程学院,南京211189; 3.江苏苏博特新材料股份有限公司,南京210096

阳凯丽1,刘加平1,2,穆 松3

阳凯丽,刘加平,穆松.高温水热养护砂浆的硫酸盐早期侵蚀特征研究[J].混凝土与水泥制品,2017(5):5-10.

YANG K L, LIU J P, MU S.Characteristic Research of Sulfate Attack in Early for High Temperature Water Heat-curing Mortar[J].China Concrete and Cement Products,2017(5):5-10.

浏览量:
1000
摘  要:为了考察硫酸盐环境中高温水热养护砂浆的早期性能劣化特征,采用六种不同C3A含量的水泥制备成砂浆试件(水胶比为0.45),置于60℃的高温水热环境中养护3d后浸泡于10000mg/L硫酸钠溶液中进行了210d浸泡试验。测试了不同侵蚀龄期试件的变形性能及弹性模量。结果表明,随着侵蚀龄期的延长,不同C3A含量的高温水热养护砂浆试件呈现出先收缩后不断膨胀的规律,而试件的弹性模量则逐渐增大;砂浆试件的长度变化和侵蚀龄期间满足一元二次多项式关系。在210d的硫酸盐侵蚀浸泡条件下,经高温水热养护的高抗硫酸盐水泥砂浆不能有效提高试件的抗硫酸盐侵蚀性能。Abstract:Inordertostudytheperformancecharacteristicsofwaterheatcuringmortarinsulfatesolution,themortarspecimenswerepreparedwith0.45watertobinderratioandsixdifferentkindsofC3AcontentPortlandcement.Themortarspecimenswerecuredat60℃inwaterfor3dandthelong-timeimmersionsulfateattacktestin10000mg/LNa2SO4solutionwascarriedout.Thecorrespondenceoflengthchangeandyoungmodulusvariationwithsulfateattacktimewasanalyzedrespectively.ThetestresultsshowthatthewaterheatcuringmortarspecimenswithdifferentkindsofC3AcontentPortlandcementexpandgraduallyandtheyoungmodulusofthemortarspecimensareincreasedwiththeincreasingoferosiontime.Therelationshipbetweenlengthchangeanderosiontimehighlymeetthequadraticpolynomialfitting.ThehighsulfateresistantPortlandcementcouldnotimprovethesulfateresistanceofthemortarspecimenssignificantlywhentheyareimmersedinNa2SO4solutionfor210daftercuredat60℃inwater.
英文名 : Characteristic Research of Sulfate Attack in Early for High Temperature Water Heat-curing Mortar
刊期 : 2017年第5期
关键词 : 铝酸三钙;水热养护;硫酸盐侵蚀;高抗硫酸盐水泥
Key words : Tricalcium aluminate; Water heat-curing; Sulfate attack; High sulfate resistant cement
刊期 : 2017年第5期
DOI :
文章编号 : 1000-4637(2017)05-05-06
基金项目 : 国家重点基础研究发展计划(973计划)(2015CB655105);国家自然科学基金青年基金项目(51308262);江苏省自然科学基金青年基金项目(BK20131012)
作者 : 阳凯丽1,刘加平1,2,穆 松3
单位 : 1.重庆大学材料科学与工程学院,400045;2.东南大学材料科学与工程学院,南京211189; 3.江苏苏博特新材料股份有限公司,南京210096

阳凯丽1,刘加平1,2,穆 松3

阳凯丽,刘加平,穆松.高温水热养护砂浆的硫酸盐早期侵蚀特征研究[J].混凝土与水泥制品,2017(5):5-10.

YANG K L, LIU J P, MU S.Characteristic Research of Sulfate Attack in Early for High Temperature Water Heat-curing Mortar[J].China Concrete and Cement Products,2017(5):5-10.

摘要
参数
结论
参考文献
引用本文

摘   要:为了考察硫酸盐环境中高温水热养护砂浆的早期性能劣化特征,采用六种不同C3A含量的水泥制备成砂浆试件(水胶比为0.45),置于60℃的高温水热环境中养护3d后浸泡于10000mg/L硫酸钠溶液中进行了210d浸泡试验。测试了不同侵蚀龄期试件的变形性能及弹性模量。结果表明,随着侵蚀龄期的延长,不同C3A含量的高温水热养护砂浆试件呈现出先收缩后不断膨胀的规律,而试件的弹性模量则逐渐增大;砂浆试件的长度变化和侵蚀龄期间满足一元二次多项式关系。在210d的硫酸盐侵蚀浸泡条件下,经高温水热养护的高抗硫酸盐水泥砂浆不能有效提高试件的抗硫酸盐侵蚀性能。

Abstract: In order to study the performance characteristics of water heat curing mortar in sulfate solution, the mortar specimens were prepared with 0.45 water to binder ratio and six different kinds of C3A content Portland cement. The mortar specimens were cured at 60℃ in water for 3d and the long-time immersion sulfate attack test in 10000mg/L Na2SO4 solution was carried out. The correspondence of length change and young modulus variation with sulfate attack time was analyzed respectively. The test results show that the water heat curing mortar specimens with different kinds of C3A content Portland cement expand gradually and the young modulus of the mortar specimens are increased with the increasing of erosion time. The relationship between length change and erosion time highly meet the quadratic polynomial fitting. The high sulfate resistant Portland cement could not improve the sulfate resistance of the mortar specimens significantly when they are immersed in Na2SO4 solution for 210d after cured at 60℃ in water.

关键词:
铝酸三钙;水热养护;硫酸盐侵蚀;高抗硫酸盐水泥
扫二维码用手机看
未找到相应参数组,请于后台属性模板中添加
(1)高温水热养护砂浆试件在硫酸钠溶液中浸泡210d,随着侵蚀龄期延长,砂浆试件呈现出先收缩后逐渐膨胀的变化规律,试件的弹性模量则逐渐增大,相对而言试件的长度变化能更好并更快地反映高温水热养护砂浆试件的早期硫酸盐侵蚀过程。
(2)高温水热养护砂浆试件在硫酸钠溶液中浸泡210d,其长度变化和侵蚀龄期间满足y=ax2+bx二次多项式关系,各组试件拟合公式的相关系数均大于0.95。
(3)对在硫酸钠溶液中浸泡210d高温水热养护砂浆试件而言,水泥中C3A含量对其早期硫酸盐侵蚀性能无明显影响。
(4)在210d的硫酸盐侵蚀浸泡条件下,经高温水热养护的高抗硫酸盐水泥砂浆不能有效提高试件的抗硫酸盐侵蚀性能。
[1] Neville A.The confused world of sulfate attack on concrete[J]. Cement & Concrete Research,2004,34(8):1275-1296.
[2] Suleiman A R, Soliman A M, Nehdi M L.Effect of surface treatment on durability of concrete exposed to physical sulfate attack[J].Construction & Building Materials,2014,73:674-681.
[3] Naik N N, Jupe A C, Stock S R, et al. Sulfate attack monitored by microCT and EDXRD: Influence of cement type, water-to-cement ratio, and aggregate[J]. Cement & Concrete Research,2006,36(1):144-159.
[4] Shanahan N, Zayed A. Cement composition and sulfate attack: Part I[J].Cement & Concrete Research,2007,37(4):618-623.
[5] Müllauer W, Beddoe R E, Heinz D. Sulfate attack expansion mechanisms[J].Cement & Concrete Research,2013,52:208-215.
[6] Patsikas N, Katsiotis N, Pipilikaki P, et al. Durability of mortars of white cement against sulfate attack in elevated temperatures[J].Construction & Building Materials,2012,36(4):1082-1089.
[7] Marchand J.Sulfate Attack on Concrete[M].Crc Press,2001.
[8] J. Skalny, J.Marchand, I. Odler. Sulfate Attack on Concrete[M]. London and New York: Spon Press,2002.
[9] Cao H T, Bucea L,Ray A, et al. The effect of cement composition and pH of environment on sulfate resistance of Portland cements and blended cements[J].Cement & Concrete Composites,1997,19(2):161-171.
[10] Hossack A M, Thomas M D A. Evaluation of the effect of tricalcium aluminate content on the severity of sulfate attack in Portland cement and Portland limestone cement mortars[J].Cement & Concrete Composites,2015,56:115-120.
[11] Scherer G W. Stress from crystallization of salt[J].Cement & Concrete Research, 2004,34(9):1613-1624.
[12] Monteiro P J M, Kurtis K E. Time to failure for concrete exposed to severe sulfate attack[J].Cement & Concrete Research,2003,33(7):987-993.
[13] 李方元,唐新军,胡小虎.短龄期养护条件下不同混凝土长期抗硫酸盐侵蚀性能对比[J].粉煤灰综合利用,2013(4):21-23.
[14] 李双喜.短龄期养护条件下高抗硫硅酸盐水泥的抗侵蚀能力初探[J].粉煤灰综合利用,2016(4):38-40.
[15] 胡全,唐新军,翟超,等.水灰比对高抗硫硅酸盐水泥混凝土抗侵蚀性能的影响[J].新疆农业大学学报, 2013,36(3):255-258.
 

阳凯丽,刘加平,穆松.高温水热养护砂浆的硫酸盐早期侵蚀特征研究[J].混凝土与水泥制品,2017(5):5-10.

YANG K L, LIU J P, MU S.Characteristic Research of Sulfate Attack in Early for High Temperature Water Heat-curing Mortar[J].China Concrete and Cement Products,2017(5):5-10.

相关文件

暂时没有内容信息显示
请先在网站后台添加数据记录。

关注《混凝土与水泥制品》

总访问量 468,401   网站统计

官方微信公众号关闭
苏州混凝土水泥制品研究院有限公司

关于我们    |    联系我们    |    订购杂志    |    回到顶部

版权所有:中国混凝土与水泥制品网  苏ICP备10086386号   网站建设:中企动力 苏州

版权所有:中国混凝土与水泥制品网

苏ICP备10086386号

网站建设:中企动力 苏州