INFLUENCE OF CALCIUM LIGNOSULFONATE ON THE HYDRATION OF CEMENTS

THE EFFECT OF CALCIUM LIGNOSULFONATE ON THE HYDRATION OF PORTLAND, POZZOLANIC AND SLAG CEMENTS HAS BEEN STUDIED. SOME IMPORTANT PRACTICAL PROPERTIES OF HYDRATED CEMENT, SUCH AS SETTING TIME, MECHANICAL STRENGTH AND SHRINKAGE HAVE BEEN MEASURED AND RELATED TO THE PRINCIPAL CHEMICAL AND PHYSICAL FEATURES OF HYDRATED PRODUCTS EXAMINED BY ELECTRON MICROSCOPY, PORE STRUCTURE ANALYSIS, X-RAY DIFFRACTION TECHNIQUE AND THERMOGRAVIMETRIC ANALYSIS. /AUTHOR/