No.39

U.D.C 691.32

AE 50% 0.1cm3/cm2 CFT

2mm CFT

AE

CFT

1.

3.

2. 4.

1)

AE

2)

4.5%( )(N) 27N/mm2 36 N/mm2

45 N/mm2 ( 27N 36N 45N )3 3.0%

( CFT )(N) (M)

50% 45% 35%(WC50N(M) WC 45N(M) WC 35N(M)) ) 6

12

27N 50cm 60cm

(C) (N) 3.16g/cm3 3230cm3/g (M) 3.21g/cm3 3670cm3/g

(S) S1 [80%] 2.64g/cm3

S2 [20%] 2.65g/cm3

(G) G1 [50%] 2.66g/cm3

G2 [50%] 2.70g/cm3 (W)

(Ad) AE ( )

1 [ ]

31

* 技術研究所 構工法グループ

U.D.C 691.32

低粘性型増粘剤系高流動コンクリートの実用化に関する研究

古川　雄太＊　大岡　督尚＊

佐藤　良介＊　中田　寛二＊

31

東急建設技術研究所報No.39東急建設技術研究所報No.39

11

36N 45N 50cm3 4 30

40

3

CFT3)

CFT15cm 30cm

36N WC45M30

50cm

CFT 28

12 CFT

1 27N0.3cm3/cm2

4) 2 CFT5) 0.1cm3/cm2

MN

50% 0.1cm3/cm2 M

(cm)

(%)

W/C (%)

s/a (%)

(kg/m3)

W C S G Ad

(cm) (%)

( )

27N 50 4.5 59.3 52.4 174 294 953 878 4.410 55.0 4.4 23.5

36N 60 4.5 47.1 50.0 174 370 878 890 4.625 64.5 4.8 22.0 45N 60 4.5 39.0 47.4 174 447 801 903 5.364 61.0 5.1 22.0

WC50N 60 3.0 50.0 51.9 174 348 940 884 6.438 56.5 2.5 24.0 WC45N 60 3.0 45.0 50.6 174 387 900 892 6.192 59.0 2.5 22.5 WC35N 60 3.0 35.0 46.9 174 498 792 910 6.972 74.0 2.0 23.0 WC50M 60 3.0 50.0 52.0 174 348 945 884 5.916 62.5 2.9 23.0 WC45M 60 3.0 45.0 50.7 174 387 905 892 6.192 61.5 3.0 23.0 WC35M 60 3.0 35.0 47.1 174 498 798 910 6.972 71.5 3.8 23.0

a) 27N b) 36N c) 45N

CFT

JIS A 1123 3

JASS 5 T503-2009 1 2

JIS A 1108 JIS A 1149

1 36N 2 WC45M

東急建設技術研究所報No.39

32

33)

3

6)

44

4 CFT

5) 2mmM

N50%

5

50cm 36N WC45M

0.2vol%

6RC 7)

(k1=1.1, =2.35t/m3) 6

RCk1=1.1

50%

(CFT )

( )

東急建設技術研究所報No.39

33

AE

1)

2) CFT CFT

3)

4) 2mm

CFT

5)

6)

BASF

1) Vol.29 No.3 pp.70-116 2010.3

2) ( 1 2)

( ) pp.315-318 2011.8

3) pp.237-239 1994

4) ( ) p.7 1991

5) (CFT) 2012.8

6) Vol.9 No1

pp.71-85 1998.1

7) pp.38-39 1999.11

STUDY ON PRACTICAL USE OF LOW-VISCOSITY TYPE HIGH FLUIDITY CONCRETE WITH VISCOSITY AGENT

Y.Furukawa, T.Oh-oka, R,Sato , and H.Nakata

This study has examined high fluidity concrete using air-entraining and high-range water-reducing admixture with viscosity agent for practical use. As a result, bleeding satisfied target value as far as water-cement ration was less than 50%. In addition, the quantity of sedimentation was less than 2mm and satisfied target value. It was confirmed that pumpability was superior by the pressed bleeding test. About mechanical properties, compressive strength and static modulus of elasticity was equal to normal concrete. In conclusion, it was revealed that high fluidity concrete using air-entraining and high-range water-reducing admixture with viscosity agent was equal to conventional high fluidity concrete.

C 0.2%

東急建設技術研究所報No.39

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