Investigation on physical and mechanical properties of wood-cement block manufactured from agriculture residues and Haloxylon species.

Autor: Kamali Moghadam, Sedigheh, Shamsian, Mohammad, Moeel Tabaghdehi, Fatemeh, Mir, Samaneh, Rezayi Shahri, Hosein, Sabazudkhiz, Roozbeh, Faegh, Masoud
Zdroj: Journal of the Indian Academy of Wood Science; Dec2014, Vol. 11 Issue 2, p134-139, 6p
Abstrakt: In this study, the use of ligno-cellulosic materials (Pistachio, Pomegranate, Cotton Stalks , Haloxylon species), to produce lightweight construction blocks is reported. Three load of Portland cement, Type II (65, 70, 75 % w/w wood), three levels of additives as cement setting accelerator (CaCl (3 % w/w cement), CaSo (5, 10 % w/w cement)) were considered as variables (9 treatments). Three replications were fabricated for each treatment and the physical and mechanical properties of the blocks were evaluated according to ASTM D-1037. Bulk densities of blocks varied from 0.96 to 1.17 g/cm. Significant difference was found between cement content and also between CaCl and CaSo content in compressive strength. There was non-significant difference between cement content and also between CaCl and CaSo content in water absorption and thickness swelling. There was the lowest water absorption and thickness swelling for 75 % cement content and 3 % CaCl content in the wood- cement blocks. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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