Study on the conservation of bituminous mixes in high mountain roads and coastal zones

The road conservation activities allow to maintain the characteristics of platform elements ensure that vehicle mobility is carried out comfortably and safely. orographic conditions Spain, with a large length high mountain roads others at sea level; winter weather events, low temperatures, thermal gradients, wind, water, ice, snow… which cause deposits particles, filler, soils, small metals, or salt on pavement surface, can be dangerous in circulation vehicles. One traditional methods for maintaining wheel-pavement adhesion apply flux products, mainly (sodium chloride, NaCl) calcium chloride (Cl2Ca), solidly humidified (salt brine). These chemical fluxes have property preventing formation ice as antifreeze, facilitating their melting if it has already formed. This research studies influence surface bituminous pavement. interaction layer materials been analyzed different ways: first, mixture immersed water; second, another aggregate mixture; finally, hot mix asphalt made impregnated its surface. properties mixtures laboratory: density, air voids, adhesion, indirect tensile strength plastic deformation. To do this, Marshall test, Indirect Tensile Strength Ratio (ITSR), rutting test performed. not decrease significantly when manufactured added aggregate. It also offers good results specimens are inside recipients water. negative natural submerged water previously, because between low.