• Size

Aggregate gradation and size are two crucial factors to consider while choosing the aggregate you want. Aggregates are small or large, from fine sand to fist-sized rocks. It is suggested not to use the aggregates that are bigger than 1/3rd in diameter than 1/3rd of the slab's depth.

• Shape

Two popular shapes are angular particles and rounded particles. Angular aggregates can pack more closely and have a large surface area that enhances the amount of inter-particle friction than in rounded and smooth particles.

High friction is not favorable to work ability. The rounded particles need less cement paste to coat them as compared to angular particles. So the mixes with rounder particles won't require as much cementation content.

While buying the right type of aggregates from Construction aggregates companies, these tips would definitely help you.