Study on Site Construction Technology of Four-graded RCC

被引：6

作者：

Lin Yuqiang ^{[1
]}

Shi Yan ^{[1
]}

Guo Dingming ^{[2
]}

Li Jiazheng ^{[1
]}

Yang Huaquan ^{[1
]}

机构：

[1] Changjiang Water Resources Commiss, Changjiang River Sci Res Inst, Wuhan 430010, Peoples R China

[2] Shatuo HydroPower Construct Co, Guizhou Wujiang HydroPower Dev Ltd, Guizhou 565300, Peoples R China

来源：

ADVANCED BUILDING MATERIALS, PTS 1-4 | 2011年 / 250-253卷 / 1-4期

关键词：

four-graded RCC (roller compacted concrete); construction technology; rolling times; relative compaction;

D O I：

10.4028/www.scientific.net/AMR.250-253.2927

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Tests on rolling technology of four-graded RCC were carried out on dam site and then recommended construction parameters of four-graded RCC was proposed, which aimed to provide technique support for application of four-graded RCC in hydropower projects. Results show that when water consumption is 71kg/m(3) and VC value is 3s similar to 5s of four-graded RCC, large aggregates are coated with mortar sufficiently and the mixture has good performance of being-rolled and anti-separation. Recommended parameters of four-graded RCC are as follows: 2 times without vibration+6 times with vibration+2 times without vibration for 0.4m-thick layer, 2 times without vibration+8 times with vibration +2 times without vibration for 0.5m-thick layer, with rolling exciting force 395kN and walking speed 1.0 similar to 1.5km/h. Then the relative compaction of four-graded RCC can reach or exceed 98.0%.

引用

页码：2927 / +

页数：2

共 6 条

[1]

Cheng X, 2000, CEMENT CONCRETE RES, V30, P77

[2]

Dunstan M.R.H., 1999, P INT S RCCD APR 21, VI

[3]

Jia J., 2006, DEV LEVEL ENG EXAMPL

[4]

Jiang Rong-mei, 2007, WATER POWER, V33

[5]

Lin Chang-nong, 2001, J HYDROELECTRIC ENG, P49

[6]

[杨华全 Yang Huaquan], 2004, [长江科学院院报, Journal of Yangtze River Scientific Research Institute], V21, P6

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