06-22-2022, 11:58 AM
DURABILITY OF CONCRETE
Taken from : Ambuja Technical Literature Series -24
1.0 INTRODUCTION
It is estimated that worldwide consumption of concrete today is around 8.8 billion tons per year. Due to massive developments taking place in a Country like ours, it is expected to grow steadily during the next century. Concrete is a very durable material but at the same time concrete structures
have shown poor durability and loss of strength within a few years of their service life. A collapsed RCC structure in Figure 1, barely two decades old
is one such example. This is true the world over. Gigantic amount of money is being spent on maintenance, repairs run annually into billions of dollars even in developed countries.
In a concrete structure premature deterioration, excessive wear and unsatisfactory service life can occur either due to the concrete chemically
reacting with environmental pollutants or rusting of steel in concrete subsequently causing spalling or disintegration.
"Prevention is better than Cure". It is therefore essential to design , plan and construct reinforced concrete structures with P,roper control at every stage first by preventing porosity of any nature and secondly by ensuring that properties of concrete materials and their proportions are suitable enough to face the environmental pollutants.
For more details download ....
Taken from : Ambuja Technical Literature Series -24
1.0 INTRODUCTION
It is estimated that worldwide consumption of concrete today is around 8.8 billion tons per year. Due to massive developments taking place in a Country like ours, it is expected to grow steadily during the next century. Concrete is a very durable material but at the same time concrete structures
have shown poor durability and loss of strength within a few years of their service life. A collapsed RCC structure in Figure 1, barely two decades old
is one such example. This is true the world over. Gigantic amount of money is being spent on maintenance, repairs run annually into billions of dollars even in developed countries.
In a concrete structure premature deterioration, excessive wear and unsatisfactory service life can occur either due to the concrete chemically
reacting with environmental pollutants or rusting of steel in concrete subsequently causing spalling or disintegration.
"Prevention is better than Cure". It is therefore essential to design , plan and construct reinforced concrete structures with P,roper control at every stage first by preventing porosity of any nature and secondly by ensuring that properties of concrete materials and their proportions are suitable enough to face the environmental pollutants.
For more details download ....
