Study on Preparation Technology of Recycled Aggregate Rapid Repair Concrete

Author

Xu Yidong ; Chen Jiangang

Author_Institution

Res. Center of Green Building Mater. & Waste Resources Reuse, Ningbo Inst. of Technol. of Zhejiang Univ., Ningbo, China

fYear

2010

fDate

7-9 Nov. 2010

Firstpage

1

Lastpage

4

Abstract

Based on the determination of opening traffic parameters of concrete pavement, recycled aggregate rapid repair concrete was successfully prepared by adopting quick mending agent (JK-24) and recycled coarse aggregate, and the compressive strength, flexural strength and interface bond strength were investigated. As is shown by the results, the compressive strength, flexural strength and interface bond strength of 24h can meet the requirements of opening traffic with design flexural strength of 5.0MPa. Different interface disposal methods have some influences on interface bond strength. Compared with cement paste coating method, water-washing method can significantly increase the surface roughness and porosity of old concrete and easy to be operated which is recommended for old-new concrete interface disposal. The achievements have been applied in engineering practice.

Keywords

aggregates (materials); bending strength; compressive strength; concrete; maintenance engineering; porosity; recycling; roads; surface roughness; compressive strength; concrete pavement; flexural strength; interface bond strength; preparation technology; quick mending agent; recycled aggregate rapid repair concrete; recycled coarse aggregate; Aggregates; Concrete; Maintenance engineering; Roads; Surface roughness; Water conservation;

fLanguage

English

Publisher

ieee

Conference_Titel

E-Product E-Service and E-Entertainment (ICEEE), 2010 International Conference on

Conference_Location

Henan

Print_ISBN

978-1-4244-7159-1

Type

conf

DOI

10.1109/ICEEE.2010.5660393

Filename

5660393