Saturday, 31 October 2015
Twin-Wing Tsunami Barrier

On December 26, 2004 a major earthquake with a
magnitude between 9.1 and 9.3 on the Richter scale occurred off the West Coast
of Sumatra, Indonesia. This earthquake generated a devastating tsunami. Several
countries suffered from the gigantic tsunami, many people died and many more
lost their properties. The tsunami struck the West Coast of Peninsular Malaysia
and killed 68 people and destroyed many properties. The Island of Penang was
one of the places that suffered from the disaster. Fifty seven people died in
this area when most of them were enjoying their time on the beach. Many home
appliances, several boats and fishing equipments were also destroyed in the
area. In order to prevent similar damages from a possible recurring tsunami
event “TWIN-WING TSUNAMI BARRIER’’ has been used to design an offshore barrier
to dissipate the tsunami wave energy in this study. The opportunity to develop an innovative barrier
to break down the mass of the wave, to neutralize its energy and prevent them
from reaching economically strategic coastal areas became overwhelming.
Friday, 30 October 2015
Use of Rubber Particles from Recycled Tires as ConcreteAggregate for Engineering Applications

Investigations and research into the recent use of rubber particles in
concrete has been in practice. However, information on the rubber
particle sizes or their distributions within concrete which may also
influence the concrete properties is still limited. In practice, three
groups of singly-sized rubber particle samples (3 mm, 0.5 mm and
0.3 mm) and one sample of continuous size grading (prepared by blending
the three singly-sized samples to form the same particle distribution
curve of sand) were used to replace 20% of the natural fine aggregate by
volume. The reference concrete containing 100% sand was also prepared
to compare its properties with those of the samples in terms of
workability, fresh density, compressive strength, tensile splitting
strength, flexural strength and water permeability. The experimental
results demonstrated that the rubber particle size affects the
concrete's workability and water permeability to a greater extent than
the fresh density and strength. Concrete with rubber particles of larger
size tends to have a higher workability and fresh density than that
with smaller particle sizes. However, the rubber aggregates with smaller
or continuously graded particle sizes are shown to have higher
strengths and lower water permeability.Thursday, 29 October 2015
Wednesday, 28 October 2015
Thirsty Concrete Pavement!!!
Pervious concrete (also called porous concrete, permeable concrete, no fines concrete and porous pavement) is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge.
Pervious concrete is made using large aggregates with little to no fine aggregates. The concrete paste then coats the aggregates and allows water to pass through the concrete slab. Pervious concrete is traditionally used in parking areas, areas with light traffic, residential street, pedestrian walkways, and greenhouses. It is an important application for sustainable construction and is one of many low impact development techniques used by builders to protect water quality.
Tuesday, 27 October 2015
Monday, 26 October 2015
IMPORTANCE OF UNIT TEST MARKS TO RAISE POINTERZ!!!
SECRETZZ OF TOPPERZ!!!
IN CBSGS EACH SUBJECT IS OF 100 MARKS, IN WHICH UNIVERSITY
CONDUCTS 80 MARKS OF FINAL EXAM AND 20 MARKS UNIT TEST.
IMPORTANT PART IS, IF YOU SCORE 15 MARKS IN UNIT TEST THEN
YOU HAVE TO SCORE ONLY 45 MARKS OUT OF 80 MARKS IN FINAL PAPER TO ACHIEVE 7
POINTER AND 55 MARKS OUT OF 80 MARKS IN FINAL PAPER TO ACHIEVE 8 POINTERS.
SO THE ROLE OF UNIT TEST MARKS IS VERY MUCH IMPORTANT IN
GOOD POINTER.
THANKS AND REGARDS
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