Physico-chemical Methods for Investigating the Effect of the «Mador» Modifier on the Characteristics of Cement Reinforced Material

Problem statement. When performing road construction works using cold recycling technology, the construction of foundations from cement-crushed stone-gravel-sand mixtures or reinforced soils, the question arises about the use of various modifiers or stabilizers. A large number of various modifications and stabilizers are produced serially on the territory of the Russian Federation, which are additives used together with binders to improve the quality of reinforced materials - structural layers of road clothes. Determining the effect of modifiers and stabilizers (in particular, the MADOR modifier) on the structure of the binder-reinforced material requires research by physico-chemical methods. Results. The review of the results of physico-chemical studies of the effect of the MADOR modification on the structure of non-cohesive soils reinforced with cement and used for the construction of structural layers of pavement is given. The results of studies of the structure of the material reinforced with cement together with the MADOR modifier are presented. Conclusions. A positive effect from the use of the MADOR modifier for strengthening the material under study has been established due to the predominance of the active phase, which provides a higher uniformity of the structure and increased physical and mechanical properties. The studies carried out allow us to conclude that the durability and reliability of the structural layers of road clothes arranged by the method of cold regeneration using the MADOR modifier are increased.