Pre-excavation locating reduces uncertainty; it does not certify that the ground is empty. The distinction …
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Thermal Curing Of Fresh Concrete | Curing Methods
In thermal curing heat is applied to the concrete for the purpose of accelerating the gain of early concrete strength. There are several thermal curing methods that can be used, but each method has some …
Continue readingEquations for Crack Width In Flexural Concrete Beams
There are many empirical equations have been developed for finding the maximum width of cracks. These equations were based on the statistical analysis of experimental result data. In ACI code, two expressions have been mentioned. …
Continue readingDeflections Due to Long Term Loading | How To Calculate
If the loads are sustained for longer duration than initial deflections increased very prominently because of the two major affects i.e., creep and shrinkage. These two effects are considered as combined in most of the …
Continue readingDeflections Due To Shrinkage | Calculation | Formulas | Example
Shrinkage in concrete produces a compressive stress in the longitudinal reinforcement of beams and slabs. Tensile stress crops in response to balance the compressive stress. Usually, reinforcements are not placed symmetrically to the concrete centroid. …
Continue readingImmediate Deflection In Concrete Beams | Formulas | How To Calculate
Elastic deflections are the immediate deflections that occur only once during service period. It is not a time function i.e., there is no specific time when immediate deflections come into action. Mathematically immediate deflections can …
Continue readingAggregate | Def | Affects On Concrete Strength | Uses
Compressive strength of concrete is affected very prominently by the strength of aggregate, its moisture content, grading, surface texture and the maximum aggregate size. For the making of high strength concrete, aggregates like quartzite, trap …
Continue readingDeflection control In Concrete Beams | Methods | Serviceability
Serviceability of a flexural beam can be achieved by limiting cracking. And the limitations on cracking can be achieved by imposing certain controls on deflections of beams. Deflection control ensures serviceability. If the deflection value …
Continue readingFactors affecting crack width | Serviceability
A beam will not fail if there is a good anchorage bond between steel and concrete. In such case, the beam will not be affected even bond get damaged along the entire span. If a …
Continue readingCracking In Flexural Members | Serviceability
Most of the reinforced beams cracks because of a loading that are well below the service level. Restrained shrinkage becomes one of the possible reasons for cracking in members. Flexural cracking is not only because …
Continue readingShort Term Loading | Elastic Modulus | Stress Strain Relation
How structure will perform when it goes under load? It’s all depends on the type of stress, stress strain relationship and the properties of the material from which it is made. The stress – strain …
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