首页期刊信息编委及顾问期刊发行联系方式使用帮助常见问题ENGLISH
位置:首页 >> 正文
T.C.Powcrs模型若干问题的研究
作者:许仲梓 唐明述 
单位:南京化工学院  南京化工学院 
关键词:水泥石模型  低孔隙率  压汞法 
分类号:
出版年,卷(期):页码:1991,19(2):104-111
DOI:
摘要:
从T.C.Powers水泥石模型出发,提出了描述水泥混凝土材料初始结构的主要参数是初始孔隙率。由此池绎了水泥浆体组成与结构的定量关系,比原模型有更明了的物理意义,研究结果表明,Powers模型在高孔隙率范围内具有适用性,但不适用于低孔隙率硬化水泥浆体,且在低孔隙率条件下不存在28%的固有凝胶孔隙率,水化产物成份和性质是渐变的。
how to cheat read wife cheat story
why women cheat on husbands wife affair link
how to catch a cheater redirect go
why do wife cheat on husband why wifes cheat how to cheat wife
amoxicillin amoxicillin amoxicillin
cialis coupon cialis coupon cialis coupon
cialis discount coupons coupons for cialis 2016 cialis 2015 coupon
Based on Powers' model for hardened portland cement paste, a concept of "initial porosity" which is the main factor determining the initial structure of cement and concrete is proposed, and equations describing quantitatively the relation between composition and structure of hardened portland cement paste are deduced. Experimental results show that Powers' model is only suitable in the case of high W/C ratio. In case of low W/C and low-porosity the so-called "28% intrinsic gel porosity" does not exist, and the composition and properties of hydration products are gradually.
my wife cheated on me now what website husband cheat
sumatriptan side effects sumatriptan side effects sumatriptan side effects
基金项目:
国家自然科学基金
作者简介:
women want men how to cheat how do i know if my wife cheated
redirect how to cheat why women cheat on men they love
My wife cheated on me why wives cheat on husbands reasons married men cheat
my wife cheated on me now what men and women husband cheat
参考文献:
[1] T.C.Powers, J.Amer.Ceram. Soc., 41[1] (1958) 1. [2] T.C.Powers and T.L.Brownyard, Proc.Amer. Concrete Inst., 43[2, 3, 4, 5, 6] (1947) 101, 249, 467, 549, 669. [3] T.C.Hansen, Mat.and Structures, 19[114] (1986) 423. [4] M.R(?)bler and I.Odler, Cement and Concrete Res., 5[2] (1985) 320. [5] L.Hjorth, Philosophical Transactions of the Royal Society of London, A310 (1986) 167. [6] G.R.Gouda and D.M. Roy, Cement and Concrete Res., 5[6] (1975) 551. [7] J.D.Birchall, A.J.Howard, and K.Kendall, .Nature, 289(1981) 368. [8] 许仲梓,“低孔隙率胶凝材料组成、结构和力学性能的关系及其改性研究”,博士学位论文,南京化工学院(1988) 。 [9] V.S.Ramachadran, Cement and Concrete Res., 9[6] (1979) 677.
read click link
why married men cheat on their wives reasons wives cheat on husbands women cheat on men
open open My husband cheated on me
服务与反馈:
文章下载】【加入收藏
中国硅酸盐学会《硅酸盐学报》编辑室
京ICP备10016537号-2
京公网安备 11010802024188号
地址:北京市海淀区三里河路11号    邮政编码:100831
电话:010-57811253  57811254    
E-mail:jccs@ceramsoc.com