Andreev, George

SURMEND

concrete treatment services, namely, concrete sealing to repair and restore the physical and chemical properties of concrete or stone and its structural components with a multi-phase, inorganic compound to increase strength characteristics, water resistance, frost resistance, wear resistance of concrete, when applied on the hardened surface of concrete or stone; concrete treatment services, namely, concrete sealing to prevent development of biological contaminants such as fungi, mold, algae; concrete treatment services, namely, concrete sealing to crystallize the pores of concrete or stone, reduce the pores, thereby increase its strength characteristics, hardness, wear resistance, hydrophobicity and frost resistance;