Softening point of bitumen, test method
Softening point of bitumen, test method
Softening point the loop gain based on gas. Softening point is the temperature at which tar in soft loop and pass the ball through the hoop.
Softening point the loop gain based on gas. Softening point is the temperature at which tar in soft loop and pass the ball through the hoop.
Two grams of bitumen tested guarantee, does add ten milliliters suitable solvent to dissolve in the solvent of bitumen is repeated 8 cycles following:
Crude oil has impurities such as water, sand, bitumen and gases are methane and ethane. For separating solids from crude oil is stored in large tanks. The oil storage tanks, solids and gases in crude oil settled out. Following the procedure, the water in the crude oil is separated by centrifugation. In addition to solid impurities and the gas that comes with crude oil, crude oil, some salt in the salt can be washed with lukewarm water. This product will be sent by pipeline to refineries or ports to be exported.
CRM is a mixture of bitumen and modified bitumen rubber is intrusive. The viscosity modifier rubber used asphalt binder and temperature resistance as well as resistance against brittle at low temperatures increases. CRMB has good adhesion to mineral mass, and thereby reduce brittleness and deformity.
In mid-1980 the European Committee for Standardization (Comité Européen de Normalisation CEN) in order to facilitate the export of petroleum products between the EU Europe on the agenda was the creation of a harmonized standard. The first step in this way, guide release products (construction product directive) CPD in December 1988. CPD focuses on the areas of structured products that are used in accordance with their application and must answer the following essential criteria:
Non-parametric performance is important in determining the asphalt performance. The use of thermoplastic polymers with additives such as sulfur and bitumen resistance to breakage can be strengthened. Bitumen additives known as promoters and enhancers main role of bitumen in the bitumen increased resistance against permanent deformation at high temperatures. Asphalt modifiers, should be chosen in a way that does not have a negative effect on the properties of bitumen in different temperatures. If the elastic and viscous bitumen consists of two parts consider increasing elastic component bitumen, a viscous component is reduced, and this will increase the dynamic stiffness pitch. Bitumen additives have been effective, economically and executive is acceptable, readily available and can be blended with bitumen.
Packaged in order to access the desired properties are corrected. (Polymer modified bitumen)
What materials are used bitumen and polymer industry?
Polymers are formed from the union of smaller units called monomers. For example, the polymerization of monomers ethylene, polyethylene is created when a repeating unit of ethylene. Natural polymers and synthetic polymers is divided into two types. Natural polymers, such as gums, proteins, polysaccharides and synthetic polymers such as plastics (plastic thermoforming and thermosetting), rubber, fibers, adhesives and coatings.
Oxide modified bitumen 75/25 , a product made by special non-oxidation process by amending the baton vacuum at 230 ° C and a penetration index is obtained.
This product is used in industry and in solid form at room temperature and adhesion properties than conventional oxidized bitumen waterproofing and more.
In the table below you can see the profile of bitumen oxide modified:
If asphalt / bitumen to be kept in proper condition and storage capacity will be maintained without loss of properties at high temperature and heat can have a negative effect on its properties; but if too heated bitumen and when the temperature is high or placed in the vicinity of the oxygen it would be have a negative effect on the properties of the material. One of the properties of bitumen that can be kept in bad conditions changed is the degree of difficulty or consistency of tar.