The impact of different parameters on the compressive strength geopolymer synthesized from clay and bagasse bottom ash is reported. Geopolymer was thermally activated using sodium silicate hydroxide as activator. maximum dissolution alumina silica maintaining alkali conditions studied. resulting under studied for strength. Different characterizations were carried out analytical instruments. res...

The potential of the least polluted fraction (from 8 to 30 mm) municipal solid waste incineration (MSWI) weathered bottom ash (WBA) as an alkali-activated cement precursor was evaluated. Alkali-activated WBA binders (AA-WBA) formulations were prepared through alkali-activation sole precursor. Sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) mixtures with different pH's used alkali-activato...

The emergence of efflorescence may be traced back to a complex web interconnected processes that include many different paths. Efflorescence, in its most fundamental form, is the consequence bringing water containing dissolved salts surface masonry, letting evaporate, and then allowing remain on brickwork after has evaporated. Salt solutions have potential migrate either over surfaces masonry u...

This paper presents a study on the behavior of concrete produced from multi-component blended cements. These blends were prepared by blending 20 percent to 60 percent ASTM Type I cement with the combination of Class C fly ash and clean coal ash. Two percent to four percent sodium sulfate anhydrite was added to the blends as a chemical activator. Tests were conducted on the prepared concrete for...

Summary One-part geopolymers, known as “just add water” (JAW), alkali-activated formulation is presented in this work. This work reveals the design and development of short-term properties JAW geopolymers for use oilwell cementing well abandonment. Granite-based mix designs normalized with a byproduct slag small amount microsilica precursors were developed. The solid activator composed potassiu...

a new method was used to prepare abs/pa6 blends by in situ polymerization and compatibilization method. in this process, ε-caprolactam monomer was polymerized in presence of abs via activated anionic polymerization to produce pa6. the main ingredients of the reaction mixture included: monomer ()ε-caprolactam), catalyst na-caprolactamate), microactivator hdi)( and macro-activator sma)(. then, in...

Alkali-activated materials (AAMs) have been widely used as an alternative to Portland cement. This production of AAMs emits lesser carbon dioxide by utilizing industrial waste products make this cement binder technology greener and more sustainable. The conventional two-part system comprises solid aluminosilicate precursors with alkali solution activate the AAMs. However, higher alkalinity liqu...

Inorganic polymeric materials react slowly at room temperature and therefore, usually require high-temperature curing. This study determined the correlation between duration in The results revealed optimal values for each alkali equivalent of an activator (weight ratio Na2O/glass powder), curing temperature, duration. Increasing had positive effects when was lower than percentage. However, over...

This study focuses on the strength characterization of artificial fly ash aggregates produced from a pelletization process. Additionally, to improve the stability and strength properties of fly ash aggregates clay binders such as bentonite and metakaolin are added during the production. Physical properties such as specific gravity, bulk density, water absorption, gradation and individual crushi...