Evaluation of perlite powder Performance in concrete to replace part of the cement
Perlite is a one of the volcanic lava products after the fast cooling process and a large percentage of these mineral aggregates are composed of silicon and aluminum oxides. Large studies have been conducted on the performance of perlite to be replaced as a part of the aggregates, while perlite pozzolanic performance has not been taken into consideration a lot. In this study, the performance of expanded perlite powder as replacing part of cement in concrete is discussed. For this purpose, perlite powder with a cement size about 5, 10, 15, 20, 25 and 30% has been replaced in the control scheme. Experiments conducted in this study include measuring the compressive strength and measuring the speed of ultrasonic waves through the ages of 3, 7, 28 and 42 days and assessing the tensile strength at 28 days. The results show good performance of concretes containing expanded perlite powder.
T.K. Erdem, C Meral, M. Tokyay, T.Y.Erdogan, Use of perlite as a pozzolanic addition in producing blended cements, Cement & Concrete Composites 29 (2007) 13–21
F. Bektasa, L. Turanlia, P.J.M. Monteiro, Use of perlite powder to suppress the alkali–silica reaction, Cement and Concrete Research 35 (2005) 2014– 2017
RamazanDemirbog, RüstemGül, Thermal conductivity and compressive strength of expanded perlite aggregate concrete with mineral admixtures, Energy and Buildings 35 (2003) 1155–1159
RızaPolat, RamazanDemirboğa, M. BurhanKarakoç, İbrahim Türkmen, The influence of lightweight aggregate on the physico-mechanical properties of concrete exposed to freeze– thaw cycles, Cold Regions Science and Technology 60 (2010) 51–56
Ibrahim Turkmen, AbdulhamitKantarc, Effects of expanded perlite aggregate and different curing conditions on the physical and mechanical properties of self-compacting concrete, Building and Environment 42 (2007) 2378–2383
L.-H. Yu, H. Ou1, L.-L. Lee, Investigation on pozzolanic effect of perlite powder in concrete, Cement and Concrete Research 33 (2003) 73–76
MesutAsik, " structural lightweight concrete with natural perlite aggregate and perlite powder , Master Thesis, September 2006, middle east technical university.
Whitehurst EA., " Soniscope tests concrete structures ", J Am Concr Inst;47:443–4, 1951.