Paper Title
A STUDY ON CONCRETE MIX DESIGEN IMPROVEMENT FOR SHRINKAGE CRACKING IN ROADAbstract
It is essential to assess concrete mix designs in order to minimize early-age shrinkage cracking in order to ensure the long-term durability of roadways. Early-age shrinkage cracking and other types of deterioration can be brought on by the rapid moisture loss in concrete. This process is influenced by cementitious materials, aggregates, the water-cement ratio, and admixtures. The mix design must be optimized to minimize shrinkage risk while maintaining the desired properties of the concrete. There are several ways to lessen concrete\'s propensity to fracture due to early age-related shrinkage. One cement that has been designed specifically to reduce the risk of shrinkage is Type K cement, for instance. The use of lightweight stones, such as expanded shale or clay, can also reduce shrinkage. Examples of pozzolanic elements that can be added to concrete to boost its strength and durability while reducing its propensity to shrink are fly ash and silica fume. Utilize chemical admixtures, such as shrinkage-reducing admixtures, to lessen early-age shrinkage cracking. By selecting appropriate mix designs and employing strategies including the use of low-shrinkage cementitious materials, lightweight aggregates, pozzolanic materials, and chemical admixtures, early-age shrinkage cracking may be successfully controlled.
KEYWORDS : Mix designs, shrinkage cracking, lightweight aggregates, early-age shrinkage cracking, cementitious materials.