Effect of Incorporating Pottery and Bottom Ash as Partial Replacement of Cement

Abstract

This study addressed the environmental constraints in cement production. Ordinary Portland cement (OPC) was replaced with pottery powder (PP, produced by grinding locally available pottery) and bottom ash (BA) at 10%, 20% and 30% of cement mass. Moreover, 4% calcium chloride solution (CaCl 2 .2H 2 O) was used as mixing water. Material properties, such as standard consistency, setting time and compressive strength, were measured with different percentages of OPC replacement with PP and BA. Results indicated that the replacement with PP and BA increased the water demand to achieve the standard consistency. These results revealed that the strength evolution of 30% PP and BA is lower than that of the corresponding OPC mix, whereas the 10% and 20% replacements have a similar compressive strength to the control mix at 28 and 90 days, respectively. Slightly higher compressive strength was observed with the addition of 4% CaCl 2 than the OPC mix.

Circular economy in cementitious ceramics: Replacement of hydrated lime with a stoichiometric balanced combination of clay and marble waste

“…Similar results were obtained by Marvila et al, 24 who evaluated the application of clay residue in mortars, replacing e 25%‐100% of hydrated lime by clay. The authors observed the same pattern of results specified by Tayeh et al 23 …”

“…Similar results were obtained by Marvila et al, 24 who evaluated the application of clay residue in mortars, replacing e 25%-100% of hydrated lime by clay. The authors observed the same pattern of results specified by Tayeh et al 23 Regarding marble waste, Tayeh 25 proposed the application of several residues, including marble, the application of several residues, including marble, as a substitution for cement in percentages of 10%-30%. The author observed a drop in mechanical properties and workability, due to the removal of cement, concluding that the use of 10% of the waste is viable.…”

“…Some interesting works have been carried out by other authors studying the application of marble and clay residues, individually, such as those cited below: Tayeh et al 23 studied the possibility of using clay powder residue in the form of ceramics to replace cement in percentages of 10%, 20%, and 30%. The authors observed a reduction in the workability of the material as the residue is used, and a statistical equivalence in the properties of the mortars studied when using 10% of the residue.…”

“…This circular economy approach, based on the reinsertion of waste in the production cycle, not only minimizes the waste disposal in the environment and optimizes the raw materials extraction, but also makes the manufacturing industry more competitive. 21,22 Some interesting works have been carried out by other authors studying the application of marble and clay residues, individually, such as those cited below: Tayeh et al 23 studied the possibility of using clay powder residue in the form of ceramics to replace cement in percentages of 10%, 20%, and 30%. The authors observed a reduction in the workability of the material as the residue is used, and a statistical equivalence in the properties of the mortars studied when using 10% of the residue.…”

Properties of eco-friendly cement mortar contained recycled materials from different sources

“…Fine aggregate was replaced by Tyre Rubber [22], Copper Slag [23] and Mica [24]. One the other hand, the cement was replaced by GGBS [14], CKD [25], Fly ash [26], rice husk ash [27] and bottom ash [28].…”