Introduction

The use of manufactured sand as a replacement for river sand is increasing with the ban on sand mining implemented by different states. The other factors are the general decline in the availability of river sand and pressure from active environmental groups to protect the nature.

Urban Growth

The phenomenal rise in the construction activity in the last decade has contributed to the wide gap between the supply and demand of river sand. A lot of damage has been caused to the eco-systems by carrying out dredging operations on the sand beds leading to the depletion of ground water levels in the country.

Role of Fine Aggregates In Concrete

It is accepted fact that sand plays a very important role in the production of concrete. The features of workability, strength and durability are directly dependent on the properties of the sand used in the making of concrete. Fine aggregates are the structural filler that occupies most of the volume of the concrete mix formulas. Depending on composition, shape, size and other properties of fine aggregate you can have a significant impact on the output.

Concept of Manufactured Sand

According to industry reports there is a major shift in the mindset of the Construction Industry towards exploring substitutes for river sand. Across the world, there is growing support for manufactured sand usage in the production of concrete. The properties of particle shape, consistent gradation and zero impurities are the reason for the preference by structural consultants and concrete technologists. The imperative need for clean sand, eliminating the constraints of river sand like availability, price fluctuation etc, have made manufactured sand the perfect substitute for river sand.

Manufacturing Process

The sand is manufactured in a three stage crushing process. The raw material is either granite or basalt rock. The VSI which is also referred as sand making machine is in the Tertiary Stage. The process adopted is similar to the river sand generation by nature. The VSI applies the principle of rock on rock collision at a high velocity shaping the sand particles.The properties of particle shape, consistent gradation and zero impurities are the reason for the preference by structural consultants and concrete technologists.

Manufacturing Process and Its Standards

The sand is manufactured in a three stage crushing process. The raw material is either granite or basalt rock. The VSI which is also referred as sand making machine is in the Tertiary Stage. The process adopted is similar to the river sand generation by nature. The VSI applies the principle of rock on rock collision at a high velocity shaping the sand particles.

RoboSand

RoboAggregates

RoboPlast