Low porosity cement-based covering material for roads, paved areas - contains fine sand and polymer particles to fill pores left when cement sets

• Main Authors: LOUP JEAN-PIERRE, CAMPO MIREILLE
• Format: Patent
• Language: English; French
• Published: 22.04.1994
• Edition: 5
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF NATURAL STONE

The material, for use e.g. in civil engineering projects, is made from a low-porosity sand with a grain size of between 0 and 4 mm, a cement with a relatively high specific surface - over 3700 cm2/g, and particles of a polymer or copolymer with a grain size of less than 15 microns, in a proportion of 5-30 per cent of that of the cement by weight, filling the pores left by the setting of the cement by virtue of their small grain size. The material has a total porous volume of less than 40 mm3/g, and a surface energy which is such that the angle formed by a droplet of water on its surface is greater than 20 degrees. USE/ADVANTAGE - For paved areas, surfaces used by vehicles or wall renderings. Increased impermeability, greater resistance to oil marks and easier removal of ice. Le secteur technique de la présente invention est celui du bâtiment et des travaux publics. Ladite invention concerne l'application d'un matériau à base de ciment et de fines organiques tel qu'il est utilisé pour réaliser des surfaces de revêtement quasi intachables et détachables. Il comprend des proportions et des granulométries données de ses composants de base mélangés suivant des procédés et des traitements de mise en œuvre pour que le revêtement une fois réalisé avec ledit matériau est tel qu'une tache d'huile lubrifiante usagée déposée à la surface de celui-ci et âgée de plusieurs semaines est entièrement nettoyée en l'essuyant avec un papier imprégné d'un solvant.