CTI provides ground material testing services related to building materials and construction projects. "Test items: fluidity ratio, water requirement ratio, fineness, stability, density, water content, compressive strength ratio (activity index). Types of admixtures Testing: Fly ash, granulated blast furnace slag, silica fume, phosphorous slag powder ceramic tiles Testing items: size and surface quality, water absorption, apparent porosity, apparent relative density, bulk density, breaking strength, modulus of rupture."