Rahmatzoda Alisher Sunat

Annotation:

The article provides an analysis of the results of previous studies on the effect of chemical additives on the properties of cement, as well as the contradictions they present. Experimental studies have been conducted on the effect of chemical additives from vegetable raw materials on the properties of cement. The experimental results obtained show that there are intervals of changes in the properties and rheology of road cement depending on the amount of the additive in it. It has been confirmed that additives produced on the basis of vegetable raw materials have a positive effect on the setting time of the cement dough and, in addition, increase the strength of the cement mortar and reduce the water consumption of cement. It is shown that such cements, which are characteristic of road concretes and based on this, are theoretically justified as the regulating composition of concrete mixtures in the production of concrete and concrete during operation in cement-concrete coatings.

Keywords: road cement, cement paste, normal density, setting time, strength, activity.