|Table of Contents|

Consideration on new specifications of road materials based on properties of recycled aggregate(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年03期
Page:
28-31
Research Field:
Publishing date:
2010-06-20

Info

Title:
Consideration on new specifications of road materials based on properties of recycled aggregate
Author(s):
GUO Yuan-chen;  SUN Ke-wei
National Engineering Research Center of Waste Resource Recovery, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
Keywords:
road engineering;  road material;  mechanism analysis;  wear value;  moisture content
PACS:
U414
DOI:
-
Abstract:
Recycled road materials are generally defined as the materials prepared to back for the road project, which made from recycled concrete aggregate(RCA)through strengthen process. The materials necessity of restraining recycled aggregates in recycled road materials and content of the old cement, moisture content of RCA and their affection on road materials were researched. The results show that: wear value of recycled aggregate is much larger than the natural aggregate's value because of general role of cutting, wear, tear, and it to some extent in response to the recycled aggregate content of waste cement mortar. As a result of “Reservoir” effect, recycled aggregate have some water, which can affect mixing water consumption of mixture of renewable road materials, to some extent, it can affect the optimum moisture content of mixture of renewable road materials. It is necessary to restrain the wear value and moisture content of recycled aggregate in choosing recycled aggregates as road materials. 1 tab, 5 figs, 8 refs.

References:

[1] Oikonomou N D.Recycled concrete aggregates [J].Cement and Concrete Composite,2007,27(3):315-318.
[2]张 超,丁纪忠,郭金胜.废弃水泥混凝土再生集料在半刚性基层中的应用[J].长安大学学报:自然科学版,2002,22(5):1-4. ZHANG Chao,DING Ji-zhong,GUO Jin-sheng.Use of scrap concrete materials in semi-rigid base-course [J].Journal of Chang'an University:Natural Science Edition,2002,22(5):1-4.
[3]Chi S P,Dixon C.Feasible use of recycled concrete aggregates and crushed clay brick as unbound road sub-base [J].Construction and Building Materials,2006,20(8):578-585.
[4]Sumeda P,Abbas M.Effects of recycled concrete aggregates on properties of asphalt concrete [J].Resources,Conservation and Recycling,2006,48(1):1-12.
[5]JTJ 058—2000,公路工程集料试验规程[S].
[6]张 超.废弃混凝土路面板在道路改建中的再利用[J].交通运输工程学报,2003,3(4):5-9. ZHANG Chao.Reuse of scrap concrete slab in highway reconstruction [J].Journal of Traffic and Transportation Engineering,2003,3(4):5-9.
[7]张 虹,熊学忠.废弃混凝土再生骨料的特性研究[J].武汉理工大学学报,2006,28(3):64-66. ZHANG Hong,XIONG Xue-zhong.Properties of recycled aggregate made by scrap concrete debris[J].Journal of Wuhan University of Technology,2006,28(3):64-66.
[8]陈国明,谭忆秋,王哲人,等.集料表面纹理测量的实验设计[J].中国公路学报,2006,19(2):36-41. CHENG Guo-ming,TAN Yi-qiu,WANG Zhe-ren,et al.Experimental design for measurement on aggregates surface texture[J].China Journal of Highway and Transport,2006,19(2):36-41.

Memo

Memo:
-
Last Update: 2010-06-20