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Being the general-purpose cement used for preparatory construction work, Ordinary Portland Cement is considered the most Commonly use cement type worldwide. Best suitable for the utilisation of pre-cast industries where rapid hardening is required, Ordinary Portland Cement is giving faster early strength, which is ideal for pre-cast/ fume hoods manufacturing. Also, it can be removed early from the product or the construction, as the expected high strength will be achieved early. The standards strength of cement mortar is obtained after 28 days, and the early strength can be determined in 2 days.

Mainly made with Portland Cement Clinker, Ordinary Portland Cement composition consist minor constituents not exceeding 5.0% of the total mass of cement to enhance the properties of the cement, such as workability.

As made for excellence, Ordinary Portland Cement meets the quality requirement specified by Sri Lanka Standard SLS 107:2015 with the strength Class of 42.5 N/R.

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Product Description:

Product Name : LANWA Sanstha Ordinary Portland Cement
Designation : Ordinary Portland Cement
Strength Class : 42.5N
Comply With : SLS 107:2015

Lanwa Sanstha Ordinary Portland Cement is a quality assured cement, manufactured in compliance with SLS 107:2015 product specification, the national standard. The cement is produced using high quality raw material followed by strict quality controlling procedures focusing the high consistency final product to exceed the customers satisfaction.


Lanwa Sanstha Ordinary Portland Cement is commonly uses for wide range of application including concreting, rendering, plastering and pre cast production.


Lanwa Sanstha Ordinary Portland Cement manufactured fulfilling the government mandatory requirement published in SLS 107:2015, by Sri Lanka Standard Institution. In addition, factory management system based on ISO 9001:2015 and supported by ISO 14001:2015, ISO 45001:2018. All the quality assurance and control activities are carried out focusing ISO/IEC 17025:2017 requirements.

Mix Design and Compatibility:

It is strongly recommended to carried out trail mixes based on proper mix design method published by globally recognized technological institution prior to commence the work in order to avoid unexpected circumstances.

The cement is compatible with wide range of admixtures and additives developed to enhance the individual performance of concreting, grouting, rendering and mortar application, but not limited.

Technical Compliance:

Average standard water consistency as per SLS ISO 9597 is 25.5%