000			02704nam a2200265Ia 4500
003			MX-MdCICY
005			20250625162420.0
040			_cCICY
090			_aB-18850
245	1	0	_aPossible use of biosolids in fired-clay bricks
490	0		_vConstruction and Building Materials, 91, p.86-93, 2015
520	3		_aIn Australia, thousands of tonnes of biosolids are produced annually and millions of dollars expended on their management. Biosolids are derived from wastewater sludge, which is the major solid component collected from the wastewater treatment process. This paper presents some of the results from a study concerning the use of biosolids in fired-clay bricks. The geotechnical characteristics of three biosolids samples from the stockpiles of the Eastern Treatment Plant (ETP)in Melbourne were investigated to assess their suitability as a partial replacement material for the clay in fired-clay bricks. The results of classification tests including liquid limit, plastic limit and sieve analysis indicated that the three biosolids samples were clayey sand and poorly graded silty sand. The linear shrinkage of the biosolids samples varied from 10 percent to 15 percent and the organic content varied from 6 percent to 14 percent. Control clay bricks with 0 percent biosolids and clay-biosolids bricks with 25 percent by weight of biosolids were made and the properties including the compressive strength, shrinkage, density, Initial Rate of Absorption (IRA), and water absorption were determined whereas thermal conductivity was estimated from an empirical model. Furthermore, the effect of adding biosolids on the microstructure of the fired-clay bricks was evaluated by scanning electron microscopy (SEM). The results showed that the compressive strength of clay-biosolids bricks were 25.9, 17.4 and 16.2 MPa for the bricks with the three different biosolids samples used in the study. This was mainly because of the addition of biosolids samples with different organic content, which resulted in fired-bricks with higher apparent porosity and thus lower density and compressive strength. The compressive strength of the control fired-clay bricks was 36.1 MPa.
650	1	4	_aBIOSOLIDS
650	1	4	_aFIRED-CLAY BRICKS
650	1	4	_aRECYCLING
650	1	4	_aSUSTAINABLE ENVIRONMENTAL MANAGEMENT
650	1	4	_aBUILDING MATERIALS
700	1	2	_aUkwatta, A.
700	1	2	_aMohajerani, A.
700	1	2	_aSetunge, S.
700	1	2	_aEshtiaghi, N.
856	4	0	_uhttps://drive.google.com/file/d/1KDPFFmxLmaRMosGJ_Pfk4VZTzAFrjfAG/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942			_2Loc _cREF1
008			250602s9999 xx |||||s2 |||| ||und|d
999			_c52994 _d52994