Structure and Raman spectroscopic studies of some construction materials

Abstract

Waste accumulation has subsequently increased to dangerous levels. Some of these wastes are tyre rubber waste and industrial wastes i.e., Brick powder (BP), Marble powder(MP), Concrete powder(CP),and Fly ash(FA). Their disposal is a serious matter of concern so their recycling would be advantageous. It has been studied that use of rubber in mortar deteriorates the hardened properties of the mortar. In this experimental work waste tire rubber is used as a fine aggregate with 10% replacement of sand along the industrial wastes as recycled powder as a replacement of cement from 0% to 30% to produce an environmental friendly mortar. The characterization of raw materials is carried out by XRD and Raman Spectroscopy . Even the industrial wastes are tested for pozzolanic activity by calculating Strength Activity Index. The mechanical properties of the Recycled Powder Self Compacting Mortar with rubber aggregate(RPSCM-R) are tested by compressive strength test, flexural strength test and calculating the water absorption and porosity. The microstructure analysis of the RPSCM is carried out by Raman Spectroscopy and XRD . It was found that the degraded hardened properties due to the use of rubber as a fine aggregate can be compensated by the use of recycled powders as a replacement of cement.