Collaboration Engineering Solutions and Products (K) Limited Institute of Engineers of Kenya Conference Kenyatta International Conference Center – Nairobi 09 th May 2012 Presentation on Brick/Block Mesh Reinforcement By: Christopher Nganga Gathini

Collaboration Engineering Solutions and Products (K) Limited Synopsis:  Increasing cases of masonry defects in construction  Lack of consistency in the quality of building materials  Use of inappropriate building materials for masonry works  Need to specify economical and durable materials for masonry construction  Need to sensitize the market on availability of alternative quality products Synopsis:  Increasing cases of masonry defects in construction  Lack of consistency in the quality of building materials  Use of inappropriate building materials for masonry works  Need to specify economical and durable materials for masonry construction  Need to sensitize the market on availability of alternative quality products

Collaboration Engineering Solutions and Products (K) Limited Code compliance: Application:  Kenya Building Code  BS 5628 Part 2  Eurocode - EC6 & EC8  ACI/ASCE 530  ASTM A951/951M Manufacturing:  ASTM A653: 1997  BS EN 10143:1993 Code compliance: Application:  Kenya Building Code  BS 5628 Part 2  Eurocode - EC6 & EC8  ACI/ASCE 530  ASTM A951/951M Manufacturing:  ASTM A653: 1997  BS EN 10143:1993

Collaboration Engineering Solutions and Products (K) Limited Types of Masonry brick/blocks:

Collaboration Engineering Solutions and Products (K) Limited Causes of masonry defects:  Sulphate attack  Corrosion of embedded fixtures  Dry shrinkage  Quality of brick/blocks  Crystallization of salts from block/brick  Weather/climate action Causes of masonry defects:  Sulphate attack  Corrosion of embedded fixtures  Dry shrinkage  Quality of brick/blocks  Crystallization of salts from block/brick  Weather/climate action

Collaboration Engineering Solutions and Products (K) Limited Types of masonry reinforcements:  Mesh reinforcement  Ladder reinforcement  Truss reinforcement  Hoop Iron Types of masonry reinforcements:  Mesh reinforcement  Ladder reinforcement  Truss reinforcement  Hoop Iron

Collaboration Engineering Solutions and Products (K) Limited Brick Mesh Reinforcement: Features:  Better bond between masonry units  Economical to transport  Easy and economical to store  Reduction in implementation time (high performance specification)  No skilled labor required  Quality assured by implementation factory  Reduction in Wastes and fallings  Engineered for performance and durability  Cost savings of between kshs. 6.5 to 16.5 per meter length Brick Mesh Reinforcement: Features:  Better bond between masonry units  Economical to transport  Easy and economical to store  Reduction in implementation time (high performance specification)  No skilled labor required  Quality assured by implementation factory  Reduction in Wastes and fallings  Engineered for performance and durability  Cost savings of between kshs. 6.5 to 16.5 per meter length

Collaboration Engineering Solutions and Products (K) Limited Truss/ladder reinforcement: Features:  Reinforces a variety of masonry walls  Greatly reduces cracking that can arise from thermal stresses  Enhances resistance to water penetration, as cracks are controlled  Increases lateral flexural strength  Bonds exterior and interior masonry wythes together in composite walls  Bonds masonry at intersecting walls and corners  Increases elasticity  Increases performance of masonry walls under various stresses Truss/ladder reinforcement: Features:  Reinforces a variety of masonry walls  Greatly reduces cracking that can arise from thermal stresses  Enhances resistance to water penetration, as cracks are controlled  Increases lateral flexural strength  Bonds exterior and interior masonry wythes together in composite walls  Bonds masonry at intersecting walls and corners  Increases elasticity  Increases performance of masonry walls under various stresses

Collaboration Engineering Solutions and Products (K) Limited Size and installation guide: Ladder/Mesh Width(mm) Brick/block Width(mm) 75mm100mm 150mm 200 – 225mm

Collaboration Engineering Solutions and Products (K) Limited £ ¥¥ $ Ksh. £ ¥¥ $ Ksh. Cost implication : Surprisingly, Its Cheaper than hoop iron!! Cost implication : Surprisingly, Its Cheaper than hoop iron!!

Collaboration Engineering Solutions and Products (K) Limited Best Practices:  Right design considerations  Proper selection of sand material  Proper selection of Cement Material  Handle material carefully  Store materials well to avoid chipping and contamination.  Proper Mortar composition  Selection of right reinforcing material  Proper curing of joints  Proper reinforcement lapping – per product specs  Train installation crew regularly  Adhere to testing requirements  Pay attention to details

Collaboration Engineering Solutions and Products (K) Limited “ Building a competitive and prosperous Kenya one brick at a time ” Market Availability: Collaboration Engineering Solutions and Products P.O. Box 7607, 00100GPO NRB Tel: Fax: , Cell: website: ABC Bank Building, 2 nd Floor - industrial Area Nairobi. Market Availability: Collaboration Engineering Solutions and Products P.O. Box 7607, 00100GPO NRB Tel: Fax: , Cell: website: ABC Bank Building, 2 nd Floor - industrial Area Nairobi. Expo Booth No. 10 at IEK Conference – KICC from 9 th to 11 th May 2012

Collaboration Engineering Solutions and Products (K) Limited ? What we believe at CESP “Efficiency is doing things right, effectiveness is doing the right things” What we believe at CESP “Efficiency is doing things right, effectiveness is doing the right things”

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