Properties of Cast-In-Place Concrete and Precast Concrete Blocks Incorporating Waste Glass Powder

Abstract

This paper deals with studies on the use of waste glass powder as an effective ingredient in concrete. Studies on cement pastes including mechanical property tests and thermal analysis were used to understand the influence of the glass powder on the cement hydration process and to arrive at an optimal dosage range. Cast-in-place concrete and block mixtures were proportioned with varying dosages of glass powder, and tests for mechanical properties, alkali-silica reaction, and water absorption were carried out. The use of fly ash as a cement replacement material was also adopted in one of the concrete mixtures to compare the performance of glass powder and fly ash in concrete. Though the complete effect of cement dilution was not overcome by the chosen dosage of glass powder, the strength results were comparable to that of control concrete. Moisture intake results of glass powder modified concrete mixtures showed lower total water absorption as well as sorptivity than the control concrete when cured for a longer duration. The expansion due to alkali-silica reaction was also lower for the glass powder modified mixtures. For the concrete block mixtures, it was found that moist curing the blocks after initial steam curing was beneficial in strength improvement. Replacement of 10% cement with glass powder was found to result in equal or higher compressive strengths of the blocks. In regions where glass powder is locally available, its use as a cement replacement material presents an efficient waste management option, without compromising concrete performance.

RETRACTED: Properties of Normal and Recycled Brick Aggregates for Production of Medium Range (25–30 MPa) Structural Strength Concrete

“…However, in the last couple of decades, concrete production and construction methods have been improved significantly due to the availability of modern technologies [1,2]. Concrete construction has shifted from the conventional practice of in-situ method to the pre-cast method [3]. Very recently, 3D printing of concrete is being advanced rather than the conventional practice of casting concrete into formwork [4].…”

Compressive and Flexural Strengths of Concrete Containing Ground Palm Kernel Shells as Partial Replacement of Cement

“…It was found that GPK "fuel" shells is finer than cement, and this may be as a result of the fact that the shape of the particles in the GPK "fuel" shells were observed to be elongated. This line of thinking is similar to that reported by [33] when glass powder was used as partial replacement for cement. However, the fineness value of the GPK ordinary shells fell far below the typical ordinary Portland cement specific surface.…”

Influence of fineness of ground recycled glass on mitigation of alkali–silica reaction in mortars

“…A large number of studies have been carried out to assess the pozzolanic reactivity of glass powder, obtained by grinding bottled glass, in concrete when used as partial replacement of cement [6][7][8][9][10][11][12][13][14]. A study by Shi et al showed that the strength activity index for mortars prepared with glass powder having an average size of 100 microns is approximately 74% [6].…”