MOLADI TECHNOLOGY??????

REPLACING

WITH

WHAT IS MOLADI?

MOLADI:

• South – African technology

• Cast a house in one day

• Resulting in structure stronger than brick.

• A cost effective, holistic design and build technology that far outweighs poorly designed costly concrete-block and masonry structures

WHAT IS MOLADI?Activity Description

• Moladi is utilizing a unique plastic injection molded technology

to produce cast-in-place mortar structures.

• The process allows unskilled labourers to use indigenous

materials to quickly and cheaply construct high standard

permanent buildings that are earthquake, cyclone and tsunami

resistant.

•Eliminating chasing for plumbing and

electrical pipe work, plastering and beam

filling.

• Resulting in a wall stronger than brick.

• Cheaper than structures built with concrete

blocks and bricks

ADVANTAGES

ADDRESSING THE FOUR KEY CHALLENGES

1. Lack of resources

2. Insufficient funds

3. Shortage of skills and

4. Time constraints

HOW MOLADI HOUSES ARE BUILT?

ERECTING MOLADI FORMWORK

THE PLASTIC FORMWORK

MORTAR MIX

FILL THE FORM WORK

REINFORCEMENT

Stripping of the Formwork

FINISHED MOLADI BUILDING

CHARATERISTICS

Production cycle completed in an 8 hour day

• Erect moladi - 4 hours

• Fill moladi   - 2 hours

• Remove moladi the following day - 2 hours

CHARACTERISTICS

• Pour is completed in 2 hours• The more the volume of fill – the more labour is

used.• One cubic meter of mortar (concrete without

stone) consists of; 1800 kg or .720 m³ of local decomposed granite/river

sand. 250 kg  of ordinary portland cement (OPC).5 litres of moladiCHEM a non-toxic, water based

chemical cocktail - application = 1 litre per 50 Kg cement. 200 litres of water.

CONTD..

• Fly ash can be used as an extender to substitute the use of cement

• a compressive strength of between 10 and 30 mPa can be achieved in a 28-day period, depending on the cement: water ratio.

• Reinforcement is in strategic positions  • the mortar mixture produces a fast curing

aerated mortar that flows easily, is waterproof and possesses good thermal and sound insulating properties.

Contd..

• Under normal conditions the mortar usually sets during the night (12 to 15 hours) and the formwork is removed the following morning.

• There is no need to vibrate the mortar in order to achieve a smooth finish.

• Electrical and water piping positioned within the cavity is cast in situ.

LABOUR REQUIREMENT

Labour is required to build a 45 m²

• Erect moladi - 10 labourers are needed to complete 4 hours work.

• Fill moladi - 7 labourers are needed to, if manually filling the form with buckets, to complete 2 hours work

• Remove moladi - 6 labourers are needed to complete 2 hours work.

COST

CASE AArea on plan = 400m²Length of walling = 80mAssume 3m high walling @ Currency 200.00/m²Then cost/m² = 80 x 3 x 200 ÷ 400= Currency 120.00/m²CASE BArea on plan = 400m²Length of walling = 208mAssume 3m high walling @ Currency 200.00/m²Then cost/m² = 208 x 3 x 200 ÷ 400= Currency 312.00/m²

APPLICATIONS

ROW HOUSING, CLASS ROOMS

CLINIC

FACTORIES

WAREHOUSE

SECURITY WALLS

OFFICES