02704nam a2200265Ia 4500 MX-MdCICY 20260521091643.0 CICY B-18850 Possible use of biosolids in fired-clay bricks Construction and Building Materials, 91, p.86-93, 2015 In 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. BIOSOLIDS FIRED-CLAY BRICKS RECYCLING SUSTAINABLE ENVIRONMENTAL MANAGEMENT BUILDING MATERIALS Ukwatta, A. Mohajerani, A. Setunge, S. Eshtiaghi, N. https://drive.google.com/file/d/1KDPFFmxLmaRMosGJ_Pfk4VZTzAFrjfAG/view?usp=drivesdk Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx Loc REF1 250602s9999 xx |||||s2 |||| ||und|d 28933 28933 0 0 Loc 0 0 F1 CICY CICY RE 2025-06-25 0 B-18850 2025-06-25 16:24:20 2025-06-25 REF1