Investigation of the effect of particulate reinforcement modified basalt mi-crofiber on the strength properties of cement mortar

Abstract

Investigation of the effect of particulate reinforcement modified basalt mi-crofiber on the strength properties of cement mortar

Belova T. K., Gur'eva V.A., Turchaninov V. I.

Incoming article date: 01.04.2015

The article examines the impact of particulate reinforcement modified basalt microfiber (MBM) on the strength properties of cement mortars. Unlike conventional particulate reinforcement fibers reinforcement solutions modified microfibers based on the assumption that the introduction of such mortar mixture nanomodified dispersion-reinforcing fillers leads to an increase in the composition of the cement stone elongated structures extending for hundreds of micrometers, which leads to a corresponding hardening solutions based on these nanoadditives. Thus, there is a dynamic dispersed reinforcement cement stone. As the nano-additive authors used a modified basalt microfibre (MBM). The effect of MBM on the strength properties and mobility of mortars of various compositions with equal water-cement ratio: control (without additives and MBM) with MBM, with the addition of superplasticizer and with the addition of superplasticizer and MBM. Also, studies were conducted on a cement-sand mortar of normal consistency with the addition of MBM and superplasticizer. As a result of entering into the mass of the modified artificial stone microfiber obtained with improved strength properties (flexural strength and compressive strength), indicating the feasibility of introducing such microfibers in mortar mixes. However, significantly reduced mobility mixtures which requires the introduction of the plasticizer.

Keywords: disperse reinforcement, modified microfiber, reinforcement cement stone, strength properties, nano-additive