Collaboration Engineering Solutions and Products
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Transcript Collaboration Engineering Solutions and Products
Collaboration Engineering Solutions and Products (K) Limited
Institute of Engineers of Kenya Conference
Kenyatta International Conference Center – Nairobi
09th 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
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
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
Collaboration Engineering Solutions and Products (K) Limited
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
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
Collaboration Engineering Solutions and Products (K) Limited
Size and installation guide:
Ladder/Mesh
Width(mm)
Brick/block Width(mm)
75mm
100mm
100mm
150mm
150mm
200 – 225mm
Collaboration Engineering Solutions and Products (K) Limited
Cost implication:
Surprisingly, Its
Cheaper than hoop
iron!!
£
¥¥
$
Ksh.
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
Market Availability:
Collaboration Engineering Solutions
and Products
P.O. Box 7607, 00100GPO NRB Tel: 0202509854 Fax:
0202509863, Cell: 0713944769 Email: [email protected]
website: www.cespkenya.com
ABC Bank Building, 2nd Floor - industrial Area Nairobi.
“Building a
Expo Booth No. 10 at IEK
Conference – KICC from 9th to 11th
May 2012
competitive and
prosperous
Kenya one brick
at a time”
Collaboration Engineering Solutions and Products (K) Limited
What we believe at CESP
“Efficiency is doing things right,
effectiveness is doing the right
things”
?
Collaboration Engineering Solutions and Products (K) Limited
THANK YOU!