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Magnetic Concentration of Iron in Lateritic Soils from Kamahuha, Murang’a County, in Kenya using Carbon Monoxide Generated In-Situ
(IJSET, 2014-08)
Chemical and Mineral Analyses of laterites from
selected sites in Kamahuha area of Murang’a County, in the
Republic of Kenya, have been carried out with particular
interest in the levels of iron and the type of minerals ...
Review of Carbonation Resistance in Hydrated Cement Based Materials
(Hindawi, 2019-01)
Blended cements are preferred to Ordinary Portland Cement (OPC) in construction industry due to costs and technological and
environmental benefits associated with them. Prevalence of significant quantities of carbon dioxide ...
Influence of Lysinibacillus sphaericus on compressive strength and water sorptivity in microbial cement mortar
(Elsevier, 2019-11)
Cement structures are subject to degradation either by aggressive media or development of micro/macro cracks
which create external substance ingress pathways. Microbiocementation can be employed as a self-intelligent
solution ...
Effects of biocementation on some properties of cement-based materials incorporating Bacillus Species bacteria – a review
(Taylor and Francis, 2019-11)
There is a growing need in the construction industry to improve transfer and
durability aspects of Portland pozzolana cement. Ureolytic bacteria have recently
emerged as potential micro-organisms well known for precipitation ...
Biocementation Influence on Flexural Strength and Chloride Ingress by Lysinibacillus sphaericus and Bacillus megaterium in Mortar Structures
(Hindawi, 2020-05)
The concrete/mortar durability performance depends mainly on the environmental conditions, the microstructures, and its chemistry. Cement structures are subject to deterioration by the ingress of aggressive media. This ...
Diffusivity of Sulphate Ion in Selected Ordinary Portland and Portland Pozzolana Cements Mortar
(Kenya Chemical Society, 2014)
Cement is subject to degradation by aggressive media. This study investigated sulphate
diffusivity in mortar made from selected Kenyan cements which included three brands of
Ordinary Portland Cements (OPC) and three ...
Determination of Potassium Levels in Intensive Subsistence Agricultural Soils in Nyamira County, Kenya
(2013)
Assessment of potassium levels in agricultural soils of Nyamira County, Kenya was necessitated by the observed progressive drops in maize acreage yields over the years despite use of phosphorus and nitrogenous fertilizers. ...
Beneficiation of Iron in Thermal-Reduced Ilmenite by Magnetic Separation
(2013)
ncreasing demands for Iron in countries development, and lack of conventional reducing agents has resulted into sourcing
of alternative ways of beneficiating the iron ore. This paper reports on the study that was done ...
Cementing material from rice husk-broken bricks-spent bleaching earth-dried calcium carbide residue
(2012)
A cementious material, coded CSBR (Carbide residue Spent bleaching earth Broken bricks and Rice husks), was made from dried calcium carbide residue (DCCR) and an incinerated mix of rice husks (RH), broken bricks (BB) and ...
Concentration of Laterites Using Biomass
(Kenya Industrial Property Institute, 2015-06-11)
A method of concentrating iron in laterites to make the iron extraction process economical
is disclosed. Concentration using biomass yields higher levels of iron by using appropriate
ratio of biomass: laterites. The ...