Building activities generate coarse (PM10≤10μm), fine (PM2.5≤2.5μm) and ultrafine particles (<100nm) making it necessary to understand both the exposure levels of operatives on site and the dispersion of ultrafine particles into the surrounding environment. This study investigates the release of particulate matter, including ultrafine particles, during the mixing of fresh concrete (incorporatin...

The research reported herein studied the permeability of concrete containing recycled-concrete aggregate (RA), superfine phosphorous slag (PHS), and ground granulated blast-furnace slag (GGBS) with and without stress. Test results showed that the chloride diffusion coefficient of RA concrete (RAC) without external loads decreased with time, and the permeability of RAC is much lower than that of...

Ground granulated blast-furnace slag (GGBS) can be used as the hydraulic phase in alkali-activated cement (AAS) or partial replacement blended cements, whose storage conditions need to fully assessed before practical applications. This paper tries address this problem by storing GGBS at controlled relative humidity (RH) using saturated solution methods 20°C. Followed performing dissolution expe...

Abstract Clayey soils swell on absorbing water and shrinks drying, any constructions built them are subjected to the differential settlements due loss of support from soil. Stabilization clays with various additives have considerable successes. Lime, cement, CaCl 2 , fly ash (FA), ground granulated blast furnace slag (GGBS), pond other chemical reagents been effective in stabilizing expansive i...

In this research, we focused on the development of composite phase-change materials (CPCMs) by incorporation of a paraffin through vacuum impregnation in widely used building materials (Kaolin and ground granulated blast-furnace slag (GGBS)). The composite PCMs were characterized using environmental scanning electron microscopy (ESEM), Fourier transform infrared spectroscopy (FT-IR), differenti...

The addition of nanomaterials affects the workability cementitious composites by reducing free water available within mixtures. In order to address this issue, present study intends ground granulated blast furnace slag (GGBS) in materials containing graphene (G) and oxide (GO). An experimental program is considered measure fresh properties, compressive strength, service life composites. Dosages...

This study aims to evaluate the effect of nanosilica (NS) and metakaolin (MK) as binder replacement materials on fresh hardened characteristics slag (GGBS)-based alkali-activated self-compacting concretes (A-ASCC). Therefore, nine A-ASCC mixes, with without metakaolin, were prepared, well mixes NS incorporation. In production GGBS was used a material. The properties determined using L-box, V-fu...