Paper Title:
Fuzzy Synthesis Method for Evaluating Quality Class of Coarse Recycled Concrete Aggregate
  Abstract

It’s necessary evaluating for quality of coarse recycled concrete aggregate (CRA) before it is used as feasible alternative of natural coarse aggregate (NCA). The factors affecting the quality of CRA, however, being multitudinous and complicated so much, associated to regional characteristic of CRA, led to a research on evaluating quality of CRA from China. First, the CRA was partitioned into three fuzzy quality classes corresponded to high, middle, and poor, respectively, whose applicable environment action grades and projects in terms of quality classes were suggested. Second, a fuzzy synthesis method how to evaluate quality classes was proposed. The present method used six indices, i.e., attached mortar content, bulk specific density, water absorption, Los Angeles abrasion loss, chlorid content and sulfate content. The weights for six indices were obtained based on credibility matrix and frequency statistic and the memberships based on optimum-intervel-style membership function. Using fuzzy weighted average operator, judgment matrix was calculated and synthetic membership score was considered as quality class judgment standard. Last, large numbers of engineering examples were computed using a program compiled in Matlab language. Computing results show that the present method is objective and reliable.

  Info
Periodical
Advanced Materials Research (Volumes 250-253)
Edited by
Guangfan Li, Yong Huang and Chaohe Chen
Pages
783-787
DOI
10.4028/www.scientific.net/AMR.250-253.783
Citation
P. H. Zhu, J. C. Feng, X. J. Wang, "Fuzzy Synthesis Method for Evaluating Quality Class of Coarse Recycled Concrete Aggregate", Advanced Materials Research, Vols. 250-253, pp. 783-787, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: M.A. Maleque, M.R. Karim, N. Yassin
Abstract:The main objectives of the present study are to develop/manufacture SiC reinforced aluminium matrix composite (SiCp/AMC) with different...
278
Authors: Anne Zulfia, Andika Insan Adyatma
Chapter 1: Advanced and Composite Materials
Abstract:Electroless plating is one method to coat Al2O3 particles reinforced. This process has been carried out to coat...
66
Authors: Ya Dan Zheng, Ming Ke Dong, Ye Jin, Jian Jun Wu
Chapter 3: Communication, Computer Engineering and Information Technologies
Abstract:CQI(Channel Quality Indicator) is an essential indicator for AMC(Adaptive Modulation and Coding) technique in LTE. Due to the long delay of...
2137