全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

减缩剂对混凝土开裂的抑制作用

, PP. 89-92

Keywords: 混凝土,减缩剂,裂缝,机理

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过对混凝土的裂缝成因及混凝土减缩剂(SRA)的功能成分分析,对SRA抑制混凝土裂缝出现的机理进行讨论.结合实验结果,分析SRA对混凝土裂缝形成的抑制效果,从微观角度验证了SRA对混凝土收缩的抑制机理.结果表明掺入适量SRA能较大程度地改善混凝土的收缩情况,主要机理是SRA改善混凝土中骨料与水泥石的结合,所含的膨胀组分补偿混凝土的收缩.

References

[1]  [ M okarem Dav idW, W eyers R icha rd E, LaneD S tephen. Deve lopm ent o f a shr inkage perform ance specifications and prediction m ode l ana lysis for supplem ental cem entitious m ate rial concre te m ixtures[ J]. Cement and Concre te Research, 2005, 35: 918- 925.
[2]  [ Burliona N ico las, Skoczy lasa Frdric, Dubo isa Th ierry. Induced an isotropic pe rm eab ility due to dry ing o f concrete[ J]. Ce m ent and Concrete Research, 2003, 33: 679-687.
[3]  [ Om ar S Baghabra A l-Am oud,i Taofiq O Ab io la, M ohammedM as lehuddin. E ffect of superplastic izer on p lastic shr inkage o f p la in and silica fum e cem en t concretes[ J] . Construction and Bu ild ing M ater ia ls, 2006, 20: 642-647.
[4]  [ Sharon Huo X, L ing UngWong. Experim ental study of early-age behav ior of h igh-pe rfo rm ance concre te deck slabs under d iffer ent curing m ethods[ J]. Construction and BuildingM a teria ls, 2006, 20: 1 049-1 056.
[5]  [ Rongb ing B, Jian S. Synthesis and ev alua tion of shr inkag e-reduc ing adm ix ture for cem entitiousm aterials[ J] . Cement and Con- cre te Research, 2005, 35: 445-448.
[6]  [ 钱晓清, 詹树林, 孟涛, 等. 减缩剂、膨胀剂、减水剂与混凝土的抗裂性[ J]. 混凝土与水泥制品, 2005( 1): 22-24.
[7]  Q ian X iaoq ing, Zhan Shu lin, M eng Tao, et a.l SRA, expanders, supe rplastic izer and cracking resistance of concrete [ J]. Ch ina Concrete and Cem ent Product, 2005( 1): 22-24. ( in Ch inese)
[8]  [ Benboud jem a F, M e ftah F, Torrenti JM. Interaction be tw een dry ing, shr inkage, creep and c racking phenom ena in concrete [ J] . Eng ineering Struc tures, 2005, 27: 239-250.
[9]  [ Co llepard iM ario, Bo rso iAnton io, Co llepard i S ilv ia, e t a.l E ffects o f shr inkag e reduc ing adm ix ture in shr inkage com pensating concrete under non-w et cur ing conditions[ J]. Cem ent and Concrete Composites, 2005, 27: 704-708.
[10]  [ Carlton D, M istry P JM. Thermo-elastic-creep ana lys is of m atu ring concrete [ J]. Comput S truct, 1991, 40( 2): 293-302.
[11]  [ Nev ille A M. Properties o f Conc rete[M ]. N ew York: JohnW iley& Sons, 1998.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133