Sökning: "fly-ash"
Visar resultat 1 - 5 av 78 avhandlingar innehållade ordet fly-ash.
1. Structure of Hardened Cement-Fly Ash Systems and Their Related Properties
Sammanfattning : The influence of fly ash on the pore structure and microstructure of cement paste and mortar has been investigated. The methods applied include water vapour sorption isotherms, scanning electron microscopy, X-ray diffraction analysis and thermogravity/differential thermal analysis. LÄS MER
2. Waste incineration residues : Persistent organic pollutants in flue gas and fly ash from waste incineration
Sammanfattning : Modern societies produce large quantities of municipal solid waste (MSW), which is commonly disposed of by incineration. This has several advantages: it reduces the waste’s volume and sterilizes it while also enabling energy recovery. LÄS MER
3. The relationship between fly ash chemistry and the thermal formation of polychlorinated pollutants during waste incineration
Sammanfattning : The thermal formation of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), biphenyls (PCBs), and naphthalenes (PCNs) is a major problem in waste incineration. Ideally, rather than relying on air cleaning systems and treatment techniques, their formation should be minimized or, if possible eliminated. LÄS MER
4. Hydration, pore structure, and related moisture properties of fly ash blended cement-based materials : Experimental methods and laboratory measurements
Sammanfattning : Cement-based materials, such as mortar and concrete, are the most employed construction materials in the world. Cement is an important component; it reacts with water to form a glue, called cement paste, which causes the material to harden. Today, cement production accounts for a significant portion of the world’s annual carbon dioxide emissions. LÄS MER
5. Binding of moisture in fly ash blended Portland cement paste and mortar : Impact of replacement level and curing temperature
Sammanfattning : .... LÄS MER