Video showing the soil selection and sieving process during Hydraform Academy's 2020 training session in Johannesburg, South Africa.

A Hydraform block is manufactured using a mixture comprising of soil and cement which is compressed by means of hydraulic pressure. The preferred soil type is classified as sandy - loam soil.

The soil must be free from organic material, not contain harmful quantities of salt, and contain sufficient clay to bind the block, so they may be handled immediately after manufacture without disintegrating.

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