Water and chloride ion penetration resistance of highstrength ultra lightweight cement composite

Liu, Xuemei, Chia, Kok Seng, Zhang, Min-Hong, & Liew, Jat Yuen, Richard (2012) Water and chloride ion penetration resistance of highstrength ultra lightweight cement composite. In Proceedings ICDC 2012 International Congress on Durability of Concrete (ICDC2012), Norwegian Concrete Association, Trondheim, Norway.

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Abstract

Durability is a significant issue to focus on for newly developed structural lightweight cement composite (ULCC). This paper presents an experimental study to evaluate the resistance of ULCC to water and chloride ion penetration. Chloride penetrability and sorptivity were evaluated for ULCC (unit weight about 1450 kg/m3) and compared with those of a normal weight concrete (NWC), a lightweight aggregate concrete (LWC), and an ultra lightweight composite with proprietary cementitious binder (DB) (unit weight about 1450 kg/m3) at similar compressive strength of about 60 MPa. Rapid chloride penetrability test, rapid migration test, water absorption (sorptivity) test, and water permeability test were conducted on these mixtures. Results indicate that ULCC and DB had comparable performance. Compared with control LWC and NWC at similar strength level, the ULCC and DB mixtures had higher resistance to chloride ion penetration, lower water absorption and virtually impermeable to water penetration.

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ID Code: 60655
Item Type: Conference Paper
Refereed: Yes
Keywords: chloride penetraiton, ultra lightweight cement composite, cement composite, durability, permeability, sorptivity
ISBN: 9788282080316
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Construction Materials (090503)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Civil Engineering not elsewhere classified (090599)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MARITIME ENGINEERING (091100) > Ship and Platform Structures (091105)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 Please consult the authors.
Deposited On: 11 Jun 2013 03:27
Last Modified: 12 Jun 2013 03:49

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