轻集料及高性能轻集料混凝土的性能研究_谭克锋.pdf
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34 4 ( ) Vo.l 34 No. 4
2006 4 JOURNAL OF TONG JIUN IVERSITY(NATURAL SC IENCE) Apr. 2006
谭克锋
( , 621010)
:、、.
. 、.
, , .
, . 60 M P 、
200 mm 、 1 834 kg m - 3. mw /m b ()
, 550 kg m - 3mw /m b 0. 28, .
, 10%. . ,
, .
:;;;
:TU 528. 4 :A :0253 - 374X(2006)04 - 0472 -04
S tudy on Cha racterist ics of Lgi htw egi ht Agg regate and H gi h
Pe rformance L gi htwe gi ht Agg regate Conc rete
TAN K ef eng
(College o fM teri ls Science nd Engineering, Southw estUniversity of Science nd Techno logy, M i ny ng 621010, Chin )
Abstract:Some ch r cteristics of lightweight ggreg te (LWA ) nd high perform nce lightw eigh t
ggreg te concrete (HPLWAC )w ere investig ted. The LWA s dop ted in this study re exp nding sh les
nd sintered fly sh ones. The test resu lts show th t thew ter bsorp tion of LWA m de of exp nded sh les
is much less th n th tm de of sintered fly sh, mi plying th t less extr w ter is needed during concrete
m ixing to get desiredmw /m b r tio. HPLWAC c n bem de successfully w ith compressive strength higher
- 3
th n 60 MP , slump round 200 mm nd density less th n 1 834 kg m . The binder content ffects
- 3
the comp ressive strength of HPLWC. How eve,r w hen the binder content exceeds 550 kg m , the
effect becomes insignific n.t Low eringm w /m b r tio c n imp rove the strength
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