The following equipment are in highest demand for production; several are described in further detail below.
BP6 Block Press
CT5 Compression Tester
PP2 Pocket Penetrometer See how to use a penetrometer.
SP3 Soil Pulverizer
Curing Chamber Tarp
Soeng Thai Interlocking Compressed Earth Block Press Model BP6
Produces 9 block variations
Block size 30 x 15 x 10 cm
Four people can produce 300 blocks per day
Six-point block height adjustment: fine threads ensure accurate adjustment
Joints use greasable bronze bushings that can be replaced when worn
Can be taken apart for maintenance and repair.
Soeng Thai Soil Pulverizer Model SP3
Appropriate for nodular lateritic (stony laterite) soils or softer soils
Easy to clean: the hopper will tilt away and the screen can be removed for easy cleaning
Single-phase 3-hp electric motor or 4-hp Honda gasoline engine (CDI electronic ignition
Replaceable high-quality bearings (SKF or NTN)
Hardened replaceable fingers
High-speed rotation for a fine grind (typical particle size is less than 4 mm)
Electric motor has optional magnetic switch for overload protection
Pocket Penetrometer PP2
In the process of making compressed earth blocks it is necessary to test the compression/density of the blocks. The blocks are tested at six different locations to ensure an even density throughout. It is also used to determine the block charge weight. The CVBT sells a Go/No-Go penetrometer.
Compression Tester / Shop Press CT5
In the process of making compressed earth blocks it is necessary to test the compression of the blocks. The blocks are tested after 5 days high-humidity curing and 2 days water immersion. Blocks can be certified to an international standard of 1, 2 or 3 megapascals compressive strength.
Parry Roofing Tile Technology
The CVBT features Parry vibrated concrete roof tile equipment. Parry Roman II molds are made from strong durable plastic. The CVBT has used them for over 15 years.
Pary Semi-sheet molds are made from polystyrene and are not as durable as Roman II molds but still of good long-lasting quality. The CVBT has used Parry Semi-Sheet molds for over 15 years.
Parry Curved Interlocking Block Technology
The CVBT also features Parry curved interlocking concrete block technology for water tanks. Two water tanks at the CVBT are made from these blocks; they provide drinking water for the whole year. This technology requires some skill and care in assembly. Leak-free water tanks need well-mortared blocks.
Description of curved interlocking water tank blocks
Nunnikhoven Paving Slab Molds (Formerly Advantage Plus)
Nunnikhoven ABS paving slab molds have been used by NGOs in South East Asia for several years now. They are durable.
Click Here to download a Nunnikhoven Mold Catalog.
Armcon Paving Slab Molds
Armcon paving slab molds are made from polyproplyene and last about 4 years with continuous use. The CVBT has used Armcon molds for almost 20 years.
Click Here to look at Armcon's mold catalog