jan 08, 2021 pune, maharashtra, india, january 8 2021 (wiredrelease) prudour pvt. ltd according to new reliable research on urethane concrete sealer market, featuring a short universal view of the size of the market, geographical scope and key trends based on volume and value, far-reaching swot analysis, development plans, value of cagr analysis and,how concrete is made portland cement association,how concrete is made. in its simplest form, concrete is a mixture of paste and aggregates, or rocks. the paste, composed of portland cement and water, coats the surface of the fine (small) and coarse (larger) aggregates. through a chemical reaction called hydration, the paste hardens and gains strength to form the rock-like mass known as concrete.