1、 l : 2006- 07- 04 “:/ EB0 S/9v “( 2006BAF02A00)Te: + ( 1965) ) , 3,p V,1Z_ r 0, E-mail: qryang mail. tongji. edu. cn 4 r + Y杨钱荣1,张树青1,杨全兵1,季文革2( 1.6v5r ! L i, Z 200092; 2. s v, r,c l2. 0%. r vs v C ,v l 8 = /, W “ LG Vl150 Lm.yN, rc 1 4 r F, V ? 3 v .m3 4( SJ)c W “ YFig. 3 Effect of air content of t
2、he same air-entrainingagent on spacing factor( SJ)m4 4c W “ 1“Fig. 4 Relationship between air content and spacing factorof concrete with different air-entraining agents, 7?9 k9?C, ,vv rc 2. 3%P, !91 p4. 5% 5. 5%, ( W “ G r 300 LmP.iNw,v r F ( ? F 200/ 1 p8 .2. 3 r d dds2. 3. 1 r dsm5A U 4 r ddsY. V
3、A, P r Mc , 4 r As. ,SJ 4 r 9 l240 Lm d, A1 5 4;v l hl r W “ .2. 2. 1 .376 6v(1 S)36 m5 4 dsYFig. 5 Effect of air-entraining agent types on airvoid size distribution2. 3. 2 c dsYm6A U rc r dsY; V A, 4SJ r, c 9F 9 9F,c Vvr7. 0%H, 9 l Q7h , c Vv Hl V ?i v ,iBs n, P rc Q7,9 Vz d2. 2. 2c Vv H r W “ Q79v
4、y.m6 rc dsY(SJ)Fig. 6 Effect of air content of fresh concreteon air void distribution ( SJ)2.4 r (2. 4. 1 r (m7A U rc M(5. 5? 0. 5)%)Hq/, 4 r (dc. V A,“B, D ( v, + (Yv.2. 2. 1 W “ A1“,y1 41. - T, V5 rc ,F 4, rc # vY; P rc a W “ v,G ? (.yN, (i ? Q r , ( N 4 r F, V ? 3 v .m7 4 (YFig. 7 Effect of air-e
5、ntraining agent types onmean air void diameter2. 4. 2 c (Ym8A U SJ 4 rc (dcY. V A, rc A3. 4% 6. 0%S =, (Yiv;77. 0% H, ( A9v.7d r,“d“ H1“ v2 000LmC , l d# ,y7 (Q7l.m8 4( SJ)c (YFig. 8 Effect of air content of fresh concreteon mean air void diameter( SJ)3 (1)“SJ 4, 4 rc rc W M1.(2) 4 rc W “ W M1, rc N
6、 4 r F, V ? v .(3) rc M H,F 4 r W “ a dsiAY;SJ 4 r 377 3 + ,: 4 r + Y r;FB 4 r, c 9F, W “ 5hl9F,l 9 59Fh ,c Vv, M.(4) ( ?rV r , ( N 4 r F, V ? 3 v .: k vYf qa r .v ,v 3F s kT,NBiV U! ID: 1 , a. r F J . r, 1996, ( 6) :9.WU Xueli, YANG Quanbing. Frost-resistance evaluation of con-crete J .Concrete, 19
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