Use of lightweight aggregates in pervious concrete

Abstract In this study, the use of lightweight aggregate (LWA) for making lightweight pervious concrete (LWPC) was presented. Diatomite (DA) and pumice (PA) were used as natural LWAs in pervious concretes. Three cement paste contents of 15%, 20%, and 25% by volume were used. The results were compared to those of LWPC containing recycled LWA from autoclaved aerated concrete (RA). The results indicated that the use of DA, PA, and RA as coarse aggregates in pervious concrete could reduce the density and thermal conductivity about 3–4 times compared with pervious concrete containing natural aggregate. The densities were 558–775 kg/m3 which were lower than 800 kg/m3 and suited for use as insulating concrete. The 28-day compressive strengths of LWPCs ranged from 2.47 to 5.99 MPa. The increase in cement paste content improved the mechanical properties of LWPCs. LWPC containing DA showed higher mechanical properties and a lower thermal conductivity than those of RA and PA. However PA exhibited higher water permeability.

[1]  K. Ramamurthy,et al.  STRUCTURE AND PROPERTIES OF AERATED CONCRETE: A REVIEW , 2000 .

[2]  Ramazan Demirboga,et al.  The effects of expanded perlite aggregate, silica fume and fly ash on the thermal conductivity of lightweight concrete , 2003 .

[3]  Shigemitsu Hatanaka,et al.  Cement paste characteristics and porous concrete properties , 2008 .

[4]  Seung-Bum Park,et al.  Studies on the sound absorption characteristics of porous concrete based on the content of recycled aggregate and target void ratio , 2005 .

[5]  Kejin Wang,et al.  Effect of Coarse Aggregate on the Freeze-Thaw Durability of Pervious Concrete , 2010 .

[6]  H. Uysal,et al.  The effects of different cement dosages, slumps, and pumice aggregate ratios on the thermal conductivity and density of concrete , 2004 .

[7]  F. C. Harris,et al.  An investigation into the properties of micro-sphere insulating concrete , 1996 .

[8]  Jing Yang,et al.  Experimental study on properties of pervious concrete pavement materials , 2003 .

[9]  Khandaker M. A. Hossain,et al.  PROPERTIES OF VOLCANIC PUMICE BASED CEMENT AND LIGHTWEIGHT CONCRETE , 2004 .

[10]  Prinya Chindaprasirt,et al.  Lightweight bricks made of diatomaceous earth, lime and gypsum , 2009 .

[11]  Bülent Yılmaz,et al.  The use of raw and calcined diatomite in cement production , 2008 .

[12]  Eugene Ryshkewitch,et al.  Compression Strength of Porous Sintered Alumina and Zirconia , 1953 .

[13]  Shigemitsu Hatanaka,et al.  Effects of binder strength and aggregate size on the compressive strength and void ratio of porous concrete , 2009 .

[14]  B. González-Corrochano,et al.  Microstructure and mineralogy of lightweight aggregates produced from washing aggregate sludge, fly ash and used motor oil , 2010 .

[15]  M. Stamatakis,et al.  The physical and mechanical properties of composite cements manufactured with calcareous and clayey Greek diatomite mixtures , 2005 .

[16]  Omkar Deo,et al.  Characterizing pore volume, sizes, and connectivity in pervious concretes for permeability prediction , 2010 .

[17]  Mehmedi Vehbi Gökçe.  Use of diatomite in the production of lightweight building elements with cement as binder , 2012 .

[18]  Waiching Tang,et al.  The effect of aggregate absorption on pore area at interfacial zone of lightweight concrete , 2008 .

[19]  Mohammed S. Imbabi,et al.  Evaluation of thermal conductivity in air permeable concrete for dynamic breathing wall construction , 2007 .

[20]  M. Tia,et al.  AN EXPERIMENTAL STUDY ON THE WATER-PURIFICATION PROPERTIES OF POROUS CONCRETE , 2004 .

[21]  Tayfun Uygunoğlu,et al.  Investigation of properties of low-strength lightweight concrete for thermal insulation , 2007 .

[22]  Hongzhi Cui,et al.  Effect of porous lightweight aggregate on strength of concrete , 2004 .

[23]  Y. Lo,et al.  MICROSTRUCTURE OF PRE-WETTED AGGREGATE ON LIGHTWEIGHT CONCRETE , 1999 .

[24]  Heewon Lee,et al.  Influence of cement flow and aggregate type on the mechanical and acoustic characteristics of porous concrete , 2010 .

[25]  J. Tay,et al.  SLUDGE ASH AS LIGHTWEIGHT CONCRETE MATERIAL , 1989 .

[26]  Richard Field,et al.  An Overview of Porous Pavement Research , 1982 .

[27]  Chai Jaturapitakkul,et al.  Pervious high-calcium fly ash geopolymer concrete , 2012 .

[28]  Prinya Chindaprasirt,et al.  Properties of pervious geopolymer concrete using recycled aggregates , 2013 .

[29]  Tayfun Uygunoğlu,et al.  Properties of autoclaved lightweight aggregate concrete , 2007 .