Interlocking Stabilized Soil Blocks (ISSB)

Interlocking Stabilized Soil Blocks, also called Interlocking Compressed Earth Blocks (ICEBs), are bricks that are made from compressed mixed soil using an ISSB machine. The blocks are then assembled similar to other types of masonry.

Product description Brand name and product description

Interlocking Stabilized Soil Blocks, also called Interlocking Compressed Earth Blocks (ICEBs), are bricks that are made from mixed soil that can be found on or off the construction site. The soil is usually mixed with cement, water and other additives to improve its characteristics. The soil is compressed using an ISSB machine and the blocks are laid with mortar in a staggered pattern similar to other types of masonry.

Target region(s) Target region for distribution/implementation (listed by country if specified)

Africa, Asia, Australia, North America, Latin America & the Caribbean, East Africa, Uganda, Kenya, Tanzania, South Africa, India.

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

Most implementation has been in Africa by organizations including MakigaTechnology for TomorrowHaileybury Youth Trust (HYT), and Connect Africa among others.

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

report from UN Habitat estimates that in 2009 the cost of ISSB in Uganda was approximately $10 USD per square meter (35,000 Ugandan Shillings).

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

ISSBs compete with CEBs that do not have the interlocking component, concrete block, clay fired brick, and mud thatch. ISSB requires less mortar and is faster to lay because the ridges guide the mason.

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal 11: Aims to offer a sustainable and more affordable alternative to clay fire bricks for the improvement of homes and communities.

Target user(s) Target user/consumer base (country, income segment)

Public sector, private sector, households, businesses.

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