Rehology and Durability of Cement Mortar by using Viscosity Modifying Admixtures

Cement mortar utilizing natural admixtures is the need of great importance for a wide scope of utilizations in the development of building structures. It is a built material for explicitapplications having superior properties like better strength, durability, and constructability. In the present consideration, create a characteristic admixture based cement mortar, admixtures like drumstick, and Ranawara resins were utilized along with normal ingredients. The nature of the natural admixture was to modify the viscosity nature of mortar. The use of natural admixtures in cement mortar enhances its properties regarding workability, strength, durability, and the economy. The extent of this paper was to investigate the effect of mineral admixtures such as Durmstick and Ranawara gums towards the execution of slab panels. Experimental results gave the effective strength on cement mortar due to the property of rheology in natural gums. This work progressively tried distinctive kinds of admixtures by casting cubes and testing them. The tests, such as sorptivity, acid test and water absorption for durability property was studied. Subsequently, the optimum result for different types of admixtures was taken to cast cement mortar slab panel along with the optimum result of admixture. Finally, the behavior of the slab panel was studied and a narrative was presented on various parameters of strength.

Effect of Sample Size of Needle Felt on its Strength Measurement

Strength and elongation are two important parameters for evaluating the durability property of needle felt which is now widely used for the air pollution control. It is necessary to measure them as reasonable as possible. The paper researches on the effect of sample size on the strength measurement of needle felt. The results show that sample width of 5cm and sample length of 20cm are suitable value for strength measurement of needle felt and sample length has a bigger effect on strength measurement of needle felt than sample width.