Influence of recycled glass content and curing conditions on the properties of self-compacting concrete after exposure to elevated temperatures

Abstract The aim of this paper is to assess the performance of self-compacting glass concrete (SCGC) after exposure to four elevated temperatures of 300 °C, 500 °C, 600 °C and 800 °C. The influence of curing conditions on the high temperature performance of SCGC was also investigated. For each curing regime, five SCGC mixtures were prepared with recycled glass (RG) which was used to replace natural fine aggregate at the level of 0%, 25%, 50%, 75% and 100%. After exposure to the elevated temperatures, concrete mass loss, density, water porosity, ultrasonic pulse velocity (UPV) and water sorptivity were determined and then a compressive strength test was conducted. The test results indicate that regardless of the exposure temperature, all the water cured specimens had higher residual strengths and mass losses while the water porosity and water sorptivity values were lower as compared to the corresponding air cured specimens. The incorporation of RG in the concrete mixes helped to maintain the concrete properties after the high temperature exposure due to the melting and resolidification of the recycled glass in the concrete matrix.

[1]  Her-Yung Wang,et al.  Durability of self-consolidating concrete using waste LCD glass , 2010 .

[2]  Chi Sun Poon,et al.  Effects of crushed glass cullet sizes, casting methods and pozzolanic materials on ASR of concrete blocks , 2011 .

[3]  Ahmad Shayan,et al.  Performance of glass powder as a pozzolanic material in concrete: A field trial on concrete slabs , 2006 .

[4]  Mechanical strength improvement of a soda-lime-silica glass by thermal treatment under flowing gas , 2004 .

[5]  Chi Sun Poon,et al.  Feasibility of using recycled glass in architectural cement mortars , 2011 .

[6]  E. A. Whitehurst,et al.  Soniscope Tests Concrete Structures , 1951 .

[7]  İsa Yüksel,et al.  Studies on mortars containing waste bottle glass and industrial by-products , 2008 .

[8]  Alain Ehrlacher,et al.  The use of thermal analysis in assessing the effect of temperature on a cement paste , 2005 .

[9]  Ahmad Shayan,et al.  Value-added Utilisation of Waste Glass in Concrete , 2002 .

[10]  Her-Yung Wang,et al.  A study on the properties of fresh self-consolidating glass concrete (SCGC) , 2010 .

[11]  Hajime Okamura,et al.  Self-Compacting Concrete , 2000 .

[12]  Seung-bum Park,et al.  Studies on expansion properties in mortar containing waste glass and fibers , 2004 .

[13]  C. S. Poon,et al.  Properties of self-compacting concrete prepared with recycled glass aggregate , 2009 .

[14]  P. Domone.  A review of the hardened mechanical properties of self-compacting concrete , 2007 .

[15]  Qingyuan Wang,et al.  Online SEM investigation of microcrack characteristics of concretes at various temperatures , 2005 .

[16]  J. Illston,et al.  The hydration of cement paste using the semi-isothermal method of derivative thermogravimetry , 1980 .

[17]  H. Toutanji,et al.  High-Strength Self-Compacting Concrete Exposed to Fire Test , 2006 .

[18]  Bahar Demirel,et al.  Effect of elevated temperature on the mechanical properties of concrete produced with finely ground pumice and silica fume , 2010 .

[19]  F. Glasser,et al.  Thermal stability and decomposition mechanisms of ettringite at <120°C , 2001 .

[20]  Mohamad J. Terro,et al.  Properties of concrete made with recycled crushed glass at elevated temperatures , 2006 .

[21]  Chi Sun Poon,et al.  Properties of architectural mortar prepared with recycled glass with different particle sizes , 2011 .

[22]  Gabriel A. Khoury,et al.  Compressive strength of concrete at high temperatures: a reassessment , 1992 .

[23]  Masuzawa,et al.  Water content and its effect on ultrasound propagation in concrete--the possibility of NDE , 2000, Ultrasonics.

[24]  Narayanan Neithalath,et al.  Influence of a fine glass powder on the durability characteristics of concrete and its comparison to fly ash , 2008 .

[25]  Kosmas K. Sideris,et al.  Mechanical Characteristics of Self-Consolidating Concretes Exposed to Elevated Temperatures , 2007 .

[26]  Yixin Shao,et al.  Studies on concrete containing ground waste glass , 2000 .