Waste vitreous enamels from the heating device production process were used for partial replacement of cement in mortar and concrete industry. This waste, due to high content heavy metals, is classified as hazardous waste. At same time, waste possess pozzolanic activity belong class 15 (WEP—generated during devices, premix technology), that 5 (WETM—generated classic technology) materials. The p...

New generations of green concretes are often consuming large amounts industrial waste, as recycled or manufactured aggregates and alternative binders substituting ordinary Portland cement. Among the materials that may be used in civil engineering works, construction demolition waste (C&DW), fly ashes, slags municipal solid incinerator bottom ashes (MSWI BA) those most diffused, but at same,...

With the rapid development of construction and industry, demand for mortar as a building material is also increasing. economic society, glass products have been widely used, manufacturing enterprises produced hundreds tons fragments slag. The main component silica, which has potential to be used an auxiliary cementing material. Therefore, waste expected recycled in buildings achieve sustainabil...

The presence of capillary pores and air voids influences concrete permeability to a large extent. Concrete density is inversely proportional to its porosity. The ingress of aggressive agents into the pore structure is responsible for various durability problems in concrete structures. Therefore, a durable concrete should have low permeability. Permeability of concrete increases with the increas...

This paper studies the recent investigations and development of combined application of Pozzolanic additions Nano-Silica (NS) and Fly Ash (FA) on the strength properties of concrete for sub sequential growth of concrete industry. This investigation not only saves the natural resources but also controls the environmental pollution by usage of wastes. The limited work is done on partial replaceme...

The study presents the behaviour of wood ash / OPC concrete. Chemical analysis of wood ash, bulk density, sieve analysis and specific gravity of wood ash and aggregates, consistency, setting time and slump test of the fresh paste were conducted to determine the suitability of the materials for concrete making. Mix ratio of 1:2:4 and percentage replacement level of 0, 10, 20, 30 and 40 percents ...

Mitigation of greenhouse gas emissions is becoming a significant factor in all industries. Cement manufacturing one the industries responsible for emissions, specifically carbon dioxide emissions. Pozzolanic materials have long been used as cement additives due to pozzolanic reaction that occurs when hydrated and formation cementitious material similar cement. In this study, shale, which common...