Build Faster
Build Stronger
Build Smarter
Research, materials testing and innovative cement-based products for sustainable construction.
Practical Expertise for Better Construction
From material quality checks to concrete diagnostics, our services connect laboratory knowledge with the needs of contractors and developers.
Materials Testing
Rigorous testing of cement, concrete, construction chemicals and building materials to support quality assurance and informed construction decisions.
Explore Our Labs →
Concrete Clinic
Forensic investigation, mix design optimization, crack assessments and repair recommendations for contractors and developers.
Explore Our Services →
Research & Technical Support
Connecting materials research with industrial application through our technical team and sustainable construction focus.
Explore Our Services →Four Laboratories, One Testing Partner
Our laboratories at the Institute of Cement and Concrete test the materials that go into every project, including our own blocks.
Cement Laboratory
- Fineness and setting time
- Compressive strength
- Chemical composition and soundness
Development Minerals Laboratory
- Aggregates grading
- Masonry units analysis
Construction Chemicals Laboratory
- Admixtures evaluation
- Bonding agents and waterproofing compounds
- Mortar additives
Soil-Cement Laboratory
- Soil mechanics testing
- Compressed earth blocks (CEBs)
- Cement stabilized earth blocks (CSEBs)
Connecting Research with the Built Environment
JOSMMAL specialises in cement solutions for sustainable construction, connecting materials research with practical products and technical services.
Our mission is to promote a sustainable construction industry through cutting-edge research and testing, eco-conscious cement and cement products, and outreach services.
University Research, Brought to Market
Our blocks are produced at the Institute of Cement and Concrete, Meru University of Science and Technology. JOSMMAL exists to commercialise the institute’s research, turning work done in its laboratories into building products and services that contractors and homeowners can use.
That means every block benefits from academic expertise, laboratory testing and a continuing research programme, not just a production line.
Learn More About JOSMMAL →- ResearchMaterials scientists and engineers develop and refine cement-based products at the institute.
- TestingJOSMMAL LABS checks raw materials and finished blocks before they reach site.
- ProductionProven designs are produced on campus and supplied to the construction industry.
Hollow Interlocking Concrete Blocks
Engineered for rapid, cost-effective and sustainable building, HICBs provide an efficient alternative to conventional walling materials.
- Interlocking design reduces mortar usage.
- Supports lower overall construction costs.
- Designed for thermal insulation and structural stability.
- Backed by university research and tested in our laboratories.
Concrete Solutions in Focus
Explore our blocks and examples of their use in construction.
Technical Knowledge
Practical Solutions
Our technical team and advisory support bring together academic research and construction industry experience.
Multidisciplinary Expertise
Materials scientists, civil engineers and concrete technologists working across research and practical application.
Research Connection
Based at the Institute of Cement and Concrete, Meru University of Science and Technology.
Testing Capability
Material testing and diagnostic services to help assess quality, performance and construction challenges.
Sustainable Construction
A focus on resource efficiency, eco-conscious cement products and cost-effective building solutions.
Prof Joseph Mwiti Marangu Awarded Joint Faculty Mobility Grant
Prof Joseph Mwiti Marangu has been awarded the Joint Faculty Mobility (JFM) Grant from NEIL to support research and development activities at JOSMMAL, including sustainable construction approaches using locally available waste materials.
Answers to Common Questions
Quick answers about JOSMMAL, our laboratory services, products and testing. Can’t find what you need? Our team is happy to help.
Ask Our Team →What is JOSMMAL?
JOSMMAL is a tech company based at the Institute of Cement and Concrete (ICC), Meru University of Science and Technology (MUST). We turn cement and concrete research into practical products and services for the construction industry, including Hollow Interlocking Concrete Blocks, materials testing, the Concrete Clinic and outreach programmes.
Where are you located?
We are at the Institute of Cement and Concrete, Meru University of Science and Technology, P.O. Box 972-60200, Meru, Kenya. Find us on Google Maps.
What are Hollow Interlocking Concrete Blocks (HICBs)?
HICBs are concrete walling blocks designed to interlock. The interlocking design reduces the mortar needed for walling, supports lower overall construction costs and is designed for thermal insulation and structural stability. View our products.
What laboratory tests do you offer?
JOSMMAL LABS covers cement (fineness, setting time, compressive strength, chemical composition, soundness), development minerals (aggregates grading, masonry units), construction chemicals (admixtures, bonding agents, waterproofing compounds, mortar additives) and soil-cement work (soil mechanics, CEBs and CSEBs). We also offer concrete testing and steel reinforcement tensile testing. Explore JOSMMAL LABS.
How do I request a test or a quote?
Use our Get a Quote form, call +254 713 008888 or email josmmal@must.ac.ke. For testing, tell us the material type, the number of samples and the assessments you need, and our team will advise on sample submission.
How long does testing take, and what does it cost?
This depends on the material and the tests required. Share your requirements through the quote form and our team will confirm the scope, timeline and cost for your samples.
What is the Concrete Clinic?
The Concrete Clinic is our diagnostic service for concrete problems. It covers forensic investigation of failing structures, concrete mix design optimisation, crack diagnostic assessments and custom repair recommendations for contractors and developers.
Do you offer training, tours or other outreach?
Yes. We share knowledge through conferences, trainings, webinars, meetings, and educational and sustainability tours. See our outreach activities.
Build Your Career with JOSMMAL
Our team brings together materials scientists, civil engineers and concrete technologists working at the meeting point of research and construction practice.
There are no open positions at the moment. Please check back here for future opportunities.
Ready to Build Faster, Stronger and Smarter?
Discuss your materials testing, concrete diagnostics or interlocking block requirements with our team.
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