TECHNICAL INFORMATION

HYDRAFORM INTERLOCKING BUILDING SYSTEM

The Hydraform building system complements the conventional brick and mortar by using Hydraform blocks. The basics of the conventional building system remain largely unchanged. Hydraform Building Technology involves constructing using interlocking blocks with minimal motor due to interlocking shear keys and minimal plaster due to its face brick finish.

This Interlocking masonry system enables speedier construction of high quality, aesthetic and affordable building. The Blocks have an extremely appealing face-brick finish and provide a pre-pointed straight masonry. The walls may be left exposed, plastered or finished with cement paint.

These blocks are made using Hydraform Block makingmachine with an option to make at the site of construction itself. The interlocking construction is suitable for both Load bearing structures as well as framed structures - single or even multistory.

EARTH QUAKE RESISTENT CONSTRUCTION

Hydraform interlocking block masonry can be effectively used in Earthquake resistant constructions incorporating necessary structural design and reinforcements. HUDCO in consultations Dr. Arya, Seismic advisor to Gujarat State Disaster Management Authority arrived at suitable designs to use these blocks in Earth quake resistant houses and buildings in Gujarat. HUDCO & other NGOs implemented these projects Hydraform machine made compressed earth interlocking block masonry. Vertical & Horizontal reinforcements can be effectively done for Earthquake construction. Hydraform India continues to improve Earthquake construction techniques with its continuous research process to improve the construction standards to meet Earthquake construction requirements.

The genesis to the adoption of Hydraform Building System lies in Hydraform Block Making machine and Hydraform Technology training package.

Hydraform machine can help you make 200 - 240 blocks per hour with manpower of about 7 - 8 people.

Hydraform machine comes to you with a comprehensive technology training and support system that includes support / training on:

HYDRAFORM INTERLOCKING BLOCK SPECIFICATION

	HF 220/ Conduit	HF150 / Brick
Use	External walls/Fencing/Load bearing constructions	Interior/Partition Walls/Framed Constructions
Width	220 mm (9 ins)	150 / 115mm (6/4.5 ins)
Height	115 mm	115 mm
Length	120 mm to 250 mm	120 mm to 250 mm
Weight	+ - 11 Kg (Full Block) for SCEB + - 9 Kg (Full Block) for Fly Ash Blocks	4.5-5.5-7 kg approx

By size, one HF220 is equivalent to three to three & half size of conventional fired bricks. Other sizes are also available.

Raw Material for making blocks

The blocks can be made in Hydraform machine using Fly ash - Lime - Gypsum - Cement- Sand, Fal-G or other fly Ash based tested combination OR Soil-Cement (compressed Stabilized Earth Blocks) OR Stone Dust - Cement. We can provide mix design assistance in this respect. Other option with Hydraform machine is to make Blocks using as well.

 

 

 

Mix Design: Although, different mix designs are possible depending upon the quality of raw material and strength required, the blocks can be successfully made using following options:

Fly ash Cement Block

Stabilized Earth Block

Note: The exact mix design will vary depending on the nature of fly ash & soil available and strength required.

Block Strength:

The block strength is determined by Soil / Fly Ash type, quantity of Cement used and other materials used and the extent of curing after manufacture of block.

We have obtained results as indicated below:

Soil - Cement Blocks		Fal-G - C. Sand
Cement Content	Strength	Cement Content	Strength
5%	4 to 5 MPa	5%	7 to 8 MPa
10%	7 to 8 MPa	8%	12 to 13 MPa

1 MPa is equal to 10 Kg / Sq. cm

Thermal Quality:

It can be up to 3 times better than conventional brick masonry.

Water Absorption:

Good quality blocks can be made from Hydraform machine to give:

For Fly Ash- Cement: Up to 10%.
For Stabilized Earth Block: Up to 12%.

Block Finish: Block finish is very good and compares even better than face brick finish. It provides option to keep the wall with or without plaster. In case of without plaster, the wall could be given a groove pointing / varnish / sili-coat or tereline coat.

Conduiting: Conduiting can be done using Conduit blocks.

Block Making: This involves the following steps:

Loading the soil	Mixing, soil, cement and water
Loading the Hydraform machine	Carrying the block
Stacking and curing the blocks	Laying the blocks

 

ADVANTAGES OVER CONVENTIONAL BRICK/CONCRETE MASONRY