Excessive use of natural resources and environmental concerns are key issues motivating the recycling waste materials in construction industry to minimize landfill problems. Free cement binders such alkali-activated have emerged as a prospective alternative ordinary Portland cement, wherein diverse industrial, agriculture, by-product been converted valuable spin-offs. Annually, tens millions to...

Abstract Since the beginning of this century, assessment environmental impacts and global warming potential industrial practices technologies are on top agenda. Therefore, many construction materials such as cement systems being designed for reducing greenhouse gas emissions. For that purpose, petroleum industry is also striving developing environmentally friendly cementing oil well application...

Proteinaceous material usually accounts for much of the total nitrogen and organic carbon in marine sediments. Thus, decomposition of protein is frequently investigated as a measure of labile organic matter turnover. The fraction of protein that escapes remineralization to CO2 undergoes transformations that may reflect pathways of preservation in sedimentary environments. We analyzed the molecu...

The geopolymerization process is an appropriate way of disposing municipal solid waste incineration fly ash (MSWIFA), and possesses the advantages immobilizing heavy metals making full use its pozzolanic properties in manufacturing green, cementitious materials. In this study, coal (FA) metakaolin (MK) were used to prepare a geopolymer composite, with MK partially replaced by different proporti...

Popular techniques of waste treatment are often very expensive and difficult to access.Nowadays, billions tons valuable material deposited in landfills without using potential. The factthat five ten percent the total carbon dioxide emissions coming from civil engineering, actually theproduction cement, means that it is necessary find some alternative materials. Alkali-activated materials -geopo...

Alkali-activated materials (AAMs) result from the dissolution process and polycondensation of precursors in high pH solutions. This material is considered alternative cement with similar properties lower environmental impact than Portland cement. However, AAMs are subjected to same standardization applied cement-based since no formal methods exist characterize this and/or precursor reactivity. ...

A potential use of cold-bonded geopolymer stabilizers made with metakaolin and slag for grouting in ground enhancement was aimed to experimentally research this article. The rheological, fresh strength performances the cement (PC)-based grouts (MK), (SL), geopolymerized (GMK), (GSL) (GSL + MK) were investigated purpose. At a wide range stabilizer replacement (0%–100%) common ratio water/binder ...

Abstract Portland cement production is not regarded as environmentally friendly, because of its associated high carbon emissions, which are responsible for 5% global emissions. An alternative to substitute fly ash cement. Australia has an abundance brown coal ash, it the main source primary energy in State Victoria. Currently, majority this material stored landfills and currently there no comme...