CONCRETE MANUFACTURERS ASSOCIATION CONCRETE MANUFACTURERS ASSOCIATION Quality cast in concrete

CONCRETE MANUFACTURERS ASSOCIATION OUR PURPOSE  To passionately promote the increased and sustainable use of our members products for the benefit of all.

CONCRETE MANUFACTURERS ASSOCIATION OUR OBJECTIVES……..  Promoting and lobbying for best-practice technical standards on material and workmanship in our sectors  Promoting CMA members as trusted technical leaders  Promoting the increased sales of members’ products  Provision of relevant, useful, timely and legally compliant market data

CONCRETE MANUFACTURERS ASSOCIATION  Our objectives will be achieved by Using our access to trade and professional publications to promote best-practice Lobby to professionals and Master Builders through associate membership of relevant organisations Ensuring product quality (CMA Members) Continual improvement of National Standards Providing literature for the correct design, detailing and construction procedures of our precast concrete systems Proving cost effectiveness of precast systems versus other methods Supporting members new precast products and systems Promoting the sustainability of precast concrete products

CONCRETE MANUFACTURERS ASSOCIATION Permeable Concrete Block Paving

CONCRETE MANUFACTURERS ASSOCIATION Using Recycled Aggregates

CONCRETE MANUFACTURERS ASSOCIATION

THE CMA HAS 6 DIVISIONS ….. PIPES & INFRASTRUCTURAL PRODUCTS PAVING ROOF TILES FLOOR SLABS MASONRY RETAINING BLOCKS

CONCRETE MANUFACTURERS ASSOCIATION ACTIVITIES OF THE CMA ….. LITERATURE AND BROCHURES STANDARDS AND SPECIFICATIONS - SABS LECTURES AND TRAINING SEMINARS and CONFERENCES GENERIC RESEARCH AND TESTING EXPERT OPINION

CONCRETE MANUFACTURERS ASSOCIATION ACTIVITIES OF THE CMA ….. PROMOTIONS  Advertising Campaigns  Press Releases  Mail Shots  In-house magazine - PRECAST  Awards for Excellence

CONCRETE MANUFACTURERS ASSOCIATION THE WAY FORWARD …..  Develop strategy and business plan for association and divisions  Add value to stakeholders  Members  Cement industry  Professionals and influencers  Encourage new memberships  Promote relevant new products and application methods  System/solutions approach to market needs  CMA House

CONCRETE MANUFACTURERS ASSOCIATION

THE PAVING DIVISION – Issues and opportunities  Compliance to the revised National Standard  Black efflorescence  Increasing number of CBP pavement failures  Falling sales  Market opportunities

CONCRETE MANUFACTURERS ASSOCIATION Compliance to the revised National Standard  Compressive test replaced with one point tensile test  Some manufacturers trying to find relationship between tests  % tensile of compressive ranging from 5 to almost 8%  Standard requirements calculated on +-7% with a 15-20% increase to the old compressive requirements  Various factors affecting tensile splitting test  Combined grading of all materials  Compaction  Correct testing procedure

CONCRETE MANUFACTURERS ASSOCIATION Compliance to the revised National Standard  Water absorption test introduced  CBP affected by “black efflorescence” which is understood to be a reaction between certain ground waters, the air and elements found in CBP’s.  Theory – prevent the movement of ground water through the paver, remove black efflorescence.  Certain manufacturers making slightly porous strong base mixes with dense durable topping layer  Question, change the manufacturing process or change standard for topping layer pavers?

CONCRETE MANUFACTURERS ASSOCIATION Compliance to the revised National Standard  Abrasion test introduced  Most South African manufacturers have base layers and topping layers. Abrasion test now controls the pertinent requirements of the topping layer  Normal paver finishes ok, ultra smooth troublesome

CONCRETE MANUFACTURERS ASSOCIATION Black Efflorescence  Test the theory – movement of ground water  Large scale sampling and testing programme planned  Sample “several” pavers from an affected area and test for water absorption.  Plot water absorption versus “blackness”  Look for statistical relationship

CONCRETE MANUFACTURERS ASSOCIATION Increasing number of CBP pavement failures  CESA (Consulting Engineers of South Africa) have confirmed that pavement failures (including CBP pavements) account for the highest value of claims against their engineers professional indemnity insurance  Paving Division members had highlighted that poor design and poorer workmanship of CBP pavements was ruining the CBP industry’s good name.  CESA and CMA embarking on problem solving training seminars as part of engineers CPD process

CONCRETE MANUFACTURERS ASSOCIATION Falling sales  Members volumes have fallen >30% in the last 2 years against drop in cement sales of just >20% in the same period  2010 accounted for drop of 22%  Dilemma in CBP Industry between dropping volumes, decreasing margins and more demanding standards

CONCRETE MANUFACTURERS ASSOCIATION Growth opportunities  Permeable Paving  Good potential, but doesn’t have the required legislation to accelerate product life cycle  Township Roads  Large focus on service delivery of human settlements  New serviced townships  Upgrading roads in existing townships

CONCRETE MANUFACTURERS ASSOCIATION  15 year Case Study at Royal Bafokeng Townships  The platinum rich Bafokeng Tribe in the NW Province of South Africa invested in a concrete block plant in the 90’s to supply bricks and blocks for their people’s houses  Mid 90’s Bafokeng offered CMA member Technicrete a JV and they soon started making quality CBP’s  Mid 90’s Bafokeng started producing CBP roads in their townships  15 years and 1, m 2 of CBP in their townships Lucain Paulik, capital project manager of the Royal Bafokeng Administration says. “Little did we realise when we began the project how significant our decision would be. Not only have we been saving approximately R13 million (R per kilometre) in maintenance costs annually, but we have created road surfaces which are safe, durable and aesthetically pleasing.”

CONCRETE MANUFACTURERS ASSOCIATION