Cement & Clinker
Basetrade supplies clinker and various types of Portland and pozzolana cements which, depending on their constituent material and required end-characteristics, are divided into various categories.
Clinker is constituted of lumps or nodules, usually 3–25mm in diameter, produced by the sintering process illustrated in the production flowchart at the cement kiln stage.
Pozzolana is a volcanic ash that is ground and mixed with cement. In finely divided form and in the presence of water, pozzolana itself has cementation properties at ordinary temperatures.
This variant is mainly used for decorative and aesthetic purposes.
Oil Wells Cement
Oil wells cement is supplied in its own variant forms for use in oil well construction, as its name implies.
[tabset tab1=”Specifications” tab2=”Production Process”]
|Portland Cement Type||Characteristics||Usage||Remarks|
|Type I||Common / General purpose||Mortar and non-aggressive environments||Low resistance against chemical attack|
|Type II||Common/ General purpose||Resistance against sulphate attack between Types I and IV||More commonly used than Type I|
|Type III||Quicker setting||Where early strength is of commercial value||Long-term strength is sacrificed a little|
|Type IV||Ideal for mass concrete structures||Lowest hydration in mass concrete structures where heat production needs be controlled||Less favoured compared to other cheaper alternatives|
|Type V||Sulphate resistance||Foundations and environments where higher level of sulphates is present||Used extensively in practice|
Basetrade can ship cement in the following formats
- Bulk shipment or truck haulage
- Bulk in water-resistant jumbo bags
- Individually paper-packed bags
- Individually paper-packed bags placed in jumbo bags
Cement binds materials together. It sets and hardens independently as an ingredient in the production of masonry mortar and of concrete, which is a combination of cement and an aggregate that forms a strong building material.
The materials used to make cement are primarily limestone, alluvium, chalk, shale and clay. Volcanic ashes and slag are also used in cement production depending on the end-product characteristics required.