Earth Block Construction

What is Compressed Earth Block?

Compressed Earth Block is a type of manufactured construction material that is formed in a mechanical press that forms an appropriate mix of dirt, non-expansive clay and aggregate into a compressed block.

AECT Small Block Press

Advanced Earthen Construction Technologies, Inc. manufacturers the AECT Small Block Press at the AECT Factory in San Antonio, Texas. AECT is the only company in the world to make this AECT Small Block Press for testing/marketing of compressed earth block used for full load bearing, masonry construction block. This small block press tests the soils over the same pressures and moisture ranges used by the AECT compressed earth block machines.

General Description: The Small Block Press is sold to AECT customers in two hand made wooden storage/transport boxes. The Small Block Press operates over a pressure range of 1000 to 6000 pounds per square inch. The press produces a 1 inch by 2.5 inches by 3.5 inches earth block or cement/earth block or fly ash/earth block. The press is designed to provide a one-quarter scale size block of the typical AECT compressed earth block (10 inches x 14 inches x 4 inches) made by the AECT automated 480 block per hour, compressed earth block machine. The Small Block Press comes in two sections. Each section weights about 50-60 pounds for a total weight of about 115 pounds including the weight of the wooden boxes.

One Section is made up of the AECT machined press frame assembly with hydraulic pressure ram/press plate assembly and high pressure line quick connect/disconnect in the top of the assembly. Three other elements make up this section: (1) the steel press plate (removable), (2) the steel ejection plate (removable) and (3) the steel mold (removable) for holding/aligning the soil that is going to be pressed. All of these elements and the press frame assembly have close tolerances and fit together with high precision. That precision and the training that AECT provides purchasers of the AECT Small Block Press are important to control the small block testing process for uniformity of compression of soils, to minimize damage to the Press Assembly, and to minimize damage/injury to the Users due to not paying attention during operation.

The other Section is made up of the hand operated pressure pump assembly with a 1000 to 6000 psi liquid filled pressure meter, a pressure relief (on.off) value, and a 6000 psi rated hydraulic hose with quick disconnect couplings on both ends.

The AECT Small Block Press is simple to use and provides the user with very important information related to the block strength characteristics and block making ability of soils in both field and laboratory conditions. Training in it’s use and care only takes 1-2 hours. Training in gathering representative soil samples, preparing soils for testing and testing of soils, and interpreting the results takes 5-6 hours. AECT trains purchasers by having them experience many different soils so that the Purchaser can determine how to best test their soils independently and realistically.