With the growing global concerns regarding sustainable development in building and construction industries, concentration only on engineering properties of materials can no longer meet requirements. Although some studies have been implemented based lifecycle assessment lightweight cement-based materials, very few attempts made pertaining to multi-criteria optimization, especially when fly ash cenospheres are used as aggregates nano additives incorporated modifying admixtures. This...

Loess stabilization is an effective approach to solve the deformation and subsidence problems in loess areas. Unconsolidated-undrained direct shear tests were conducted investigate improving effect of reactive MgO fly ash on properties loess, taking into account four major controlling factors, including amount, curing time, moisture content, compaction degree. Based test results, both cohesion internal friction angle solidified achieve a peak at 6% or 14-day time. The augment water content...

With the development of nanotechnology, nanomaterials have been introduced to improve engineering properties cement-based building materials. An abundant number studies carried out on normal-weight concrete using multi-walled carbon nanotubes (MWCNTs) or nano-silica (NS) and proven their effectiveness. Nevertheless, still very few investigations are available in terms lightweight materials, especially when MWCNTs NS binarily incorporated. Thus, this study, fly ash cenospheres (FACs)...

Owing to their convenient manufacture, transportation, low energy consumption, and environmental impacts, lightweight cement composites have been applied as building construction materials. However, its decreased density is associated with a reduction in mechanical strength. In most existing investigations, attempts made improve behaviours via supplementary cementitious or fibre materials, whereas limited studies implemented on the effects of nano additives, especially synergic influence....

Portland cement (PC) is the most commonly used binder material for producing concrete. Nonetheless, increasing concerns have been attached to its manufacture which highly energy-intensive and generates a large quantity of greenhouse gases. Developing cement-free alkali-activated materials as eco-binders sustainable replacement PC, especially possibility utilize industrial by-products precursors significantly reduces environmental burden due waste disposal. Many investigations reported...

Abstract Portland cement (PC) is the most commonly used binder material for producing concrete. Nonetheless, increasing concerns have been attached to its manufacture which highly energy-intensive and generates a large quantity of greenhouse gases. Developing alkali-activated materials as eco-binders sustainable replacement PC many investigations reported successfully utilizing industrial wastes precursors. However, owing low reactivity, studies regarding biomass wood ashes (BWA) are still...

Acid/alkali contamination of expansive soils, which has been probed in recent years, gives rise to unexpected structural failure when exposed. However, a systematic research aiming at evaluating volumetric behavior natural illitic clays subjected acid/alkali solution as pore fluid and its microlevel analysis is not well established. A series oedometer tests microanalytical experiments (X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy) have carried out...

Abstract Cement materials have been commonly used in the building and construction industries. However, process of cement manufacture has long connected with high consumption energy adverse environmental impacts. In this study, order to produce innovative green material that consumes lower energy, resources is more eco-friendly, industrial waste by-product fly ash cenosphere (FAC) utilized as lightweight aggregate replace by 73.3 %. Most research regarding FAC mainly paid attention influence...

Concrete materials have been commonly used in building and construction industries. However, the process of cement manufacture has long connected with high consumption energy adverse environmental impacts. In this study, order to produce innovative green concrete material that consumes lower energy, resources is more eco-friendly, industrial waste by-product fly ash cenosphere utilized as lightweight aggregate replace by 73.3 %. most conducted researches regarding (LWC) cenospheres, attempts...