Paper Title:
Research on Technology and Mechanism of Grouting by Using High-Moisture Quick-Concreting Material
  Abstract

The high-moisture quick-concreting material is a special type of cement which can be quick-concreting and full solidifying under the condition of high water cement ratio (2.5 : 1 ) . Thus , the mechanical performances of high-moisture quick-concreting material are as follows : 1) The grout fluidity is better and the penetrability is strong ; 2)The volume of concretion is tiny expansion in favor of solid filling in steel tube and exiguous gap ; 3) Concreting speed is rapid and the early strength is big , and the concreting speed may be also adjusted ; 4)The water cement ratio and the mixing ratio can be changed to meet requirement of different strengths ; 5)There is a good plasticity . The residual strength of concreting body may account for about 50% of the peak value strength if the uniaxial compressive strain reaches to 15% ; 6) As a result of the big water cement ratio , little dosage of the unit volume and low price , the cost for using high-moisture quick-concreting material to reinforce the foundation pit wall and ground base and to fill the steel tube is lower. In this study , the mechanical property and concreting mechanism of high-moisture quick-concreting material to reinforce the loose coal body are studied and analysed by the field test and laboratory test . The test results indicated that there is a notable effect to consolidate roadway , foundation pit wall and ground base by grouting of high-moisture quick-concreting material . Finally , the engineering example of grouting by using the high-moisture quick-concreting material is presented.

  Info
Periodical
Key Engineering Materials (Volumes 405-406)
Edited by
Hao-Wen YE and Gai-Fei PENG
Pages
30-36
DOI
10.4028/www.scientific.net/KEM.405-406.30
Citation
J. B. Bai, X. Y. Wang, H. Wang, C. J. Hou, "Research on Technology and Mechanism of Grouting by Using High-Moisture Quick-Concreting Material", Key Engineering Materials, Vols. 405-406, pp. 30-36, 2009
Online since
January 2009
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Price
$32.00
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