Alum Sludge
Step 1: The Alum Sludge is a by-product of conventional drinking water treatment process
Drying
Step 2: The Alum Sludge is dried
Further Treatment
Step 3: The Alum Sludge is cleaned, milled and sieved
Portland Cement Clinker Substitute
Step 4: Portland cement clinker replacement is produced from locally available calcined alum sludge and other additives
Transport
Step 5: The processed material is transported to customers
why calcined alum sludge?
Reducing Clinker Importation
Cutting CO2 Emissions
Reducing clinker importation and trade is a sure way of cutting CO2 emissions, producing more sustainable construction materials and bringing in low-carbon path for cement production. Beneficiaries:
Building & Road Contractors
Real Estate Developers
Our Process
Our 5-Staged Process
From Sludge to Blocks
Final Usage
Practical Usage of
Calcined Alum Sludge
Real Estate Development
Calcined Alum Sludge can be used in the real estate sector for the construction of durable residential and commercial properties
Road Construction
Binding material is an essential input in the construction of road drainage structures. Calcined alum sludge is ideal for such works
PROFESSIONAL TEAM
Meet Our Dedicated Team
Fredrick
Managing Director
Fredrick
Managing DirectorOur Work
Since the conception of
Calcined Alum Sludge Idea
We have concluded the feasibility studies together with our partners Spaak CS, RHDHV and Netics BV with funding support from Netherlands Enterprise Agency (RVO) to prove the efficacy of using calcined alum sludge as clinker replacement. At this stage, we are certain of replacing up to 20% clinker for cement production. We are currently working on developing the product further (R&D) with funding support from RVO and our Dutch Partners.
TESTIMONIALS
Our Happy Customers
Kwame AnsahBuilding Constractor
Eevents & Latest News
Get all the events and latest news about the work of Green Construct ALS Limited (GCALS). We will carry you along in this exciting journey of innovation into a green sustainable society.
This week’s heavy rains were yet another painful reminder: Ghana’s urban infrastructure
Mr. Asiedu Evans (second from the left) At Green Construct ALS Ghana
At GCALS, we are dedicated to transforming Ghana’s construction industry by promoting
The building sector accounts for over 40% of global energy use and
