Prediction of Loss on Ignition of Ternary Cement Containing Coal Bottom Ash and Limestone Using Central Composite Design [PDF]
, 2019 The effect of CBA/CBA-L ratio and the cement replacement on the Loss on ignition (LOI) of ternary cement blends was investigated using central composite design approach in the prediction of LOI of ternary cement blend comprising of Ordinary Portland ...
Makarfi, Isa Yusuf +2 more
core +2 more sources
Potential of Orange Peel Ash as a Cement Replacement Material [PDF]
, 2019 The potential of Orange peel ash (OPA) as a cement replacement material was investigated with focus on the effect of OPA content on the physicomechnical properties such as consistency, setting times, soundness, compressive and flexural strengths of OPA ...
Abdullahi, Basiru +2 more
core +2 more sources
Influence of substrate annealing on inducing Ti3+ and oxygen vacancy in TiO2 thin films deposited via RF magnetron sputtering [PDF]
, 2018 Nano-crystalline TiO2 has been prepared by RF magnetron sputtering at varied substrate temperatures ranging from 200 to 500 °C. The alteration of oxygen and titanium atom in TiO2 at uppermost surface is clearly observed on the effect of annealing ...
Abdullah, S.A. +6 more
core +1 more source
Evaluation the pozzolanic reactivity of sonochemically fabricated nano natural pozzolan
Ultrasonics Sonochemistry, 2012 Natural pozzolans are appropriate supplementary cementitious materials in cement and concrete industry. A simple sonochemical method was developed to synthesize nanostructures of natural pozzolan. Chemical composition, crystallinity, morphology and reactivity of the natural pozzolan samples were compared before and after the sonochemical process, by ...
Azadeh, Askarinejad +2 more
openaire +2 more sources
Physical properties and reactivity of pozzolans, and their influence on the properties of lime–pozzolan pastes [PDF]
Materials and Structures, 2010 This paper studies how pozzolan properties including particle size, specific surface, chemical and mineral composition, amorphousness and water demand, affect their reactivity as well as the strength of lime–pozzolan pastes. Reactivity was evaluated with chemical, mechanical and mineralogical methods.
WALKER, ROSANNE, PAVIA, SARA
openaire +3 more sources
Effect of pozzolans with different physical and chemical characteristics on concrete properties
Materiales de Construccion, 2016 The durability of concrete structures is an important issue nowadays. Specifically in the case of reinforced concrete bridges or other infrastructures one of the main form of environmental attack is the penetration of chloride ions, which leads to ...
H. Paiva +3 more
doaj +1 more source
Nigerian Journal of Technological Development, 2022 Research into substituting recycled materials for cement and aggregates can yield beneficial natural resource conservation, waste management, cost savings, and reduced embodied energy in concrete.
Stephen Adeyemi Alabi, Jeffrey Mahachi
doaj
Massive Volcanic Glass: Natural Pozzolan in the West of São Paulo State [PDF]
Geologia USP. Série Científica, 2011 Some occurrences of massive volcanic glass have been recorded in the western region of São Paulo State duringgeological mapping and prospecting and technological characterization of pozzolanic materials.
Tarcísio José Montanheiro +4 more
doaj
Performance of blended cement concrete exposed to marine environment [PDF]
, 2015 Reinforced concrete exposed to the marine environment deteriorates more rapidly. Structures constructed at or near the sea shore have to be repaired more often than comparable structures located elsewhere.
Ahmed, Mir Salman +2 more
core +1 more source
Modifications induced by adding natural zeolitic pozzolans to cement paste
Materiales de Construccion, 2005 Volcanic pozzolans owe their pozzolanic activity chiefly to the presence of vitreous or zeolitic material rich in SiO2, and Al20y compounds that react with the portlandite produced during cement hydration to generate amorphous gels with cementitious ...
M. T. Blanco-Varela +3 more
doaj +1 more source