Rubber-bitumen

Dichloroethane [107-06-2] (ethylene chloride) is one of the most stable chlorinated hydrocarbons, with a good solvency for fats, oils, resins, rubber, bitumen, asphalt, and tar. Highly toxic, the odor threshold is higher than the MAK value. 

Diacetone alcohol [123-42-2] (4-hydroxy-4-methyl-2-pentanone) is an almost odorless ketone alcohol that is weakly acidic as a result of rearrangement to the enol form. It is miscible with water and organic solvents except aliphatic hydrocarbons. It acts as a good solvent for cellulose esters and ethers, alcohol-soluble resins, castor oil, and plasticizers. Poly(vinyl acetate) and chlorinated rubber are partially dissolved or swollen. Polystyrene, poly(vinyl chloride), vinyl chloride copolymers, dam-ar resins, resin esters, rubber, bitumen, mineral oils, ketone resins, and maleate resins are insoluble. Diacetone alcohol is used as a high boiler in stoving enamels to improve flow and gloss. 

Methyl glycol [109-86-4] (2-methoxyethanol, ethylene glycol monomethyl ether) has a slight odor, and is miscible with water and organic solvents except aliphatic hydrocarbons. It is a very good solvent for many natural and synthetic resins. It does not dissolve fats, oils (except castor oil), damar resin, rubber, bitumen, hydrocarbon resins, polystyrene, poly(vinyl chloride), and vinyl chloride copolymers. On account of its teratogenic properties it is replaced as a solvent in the paint and colorants sector by other solvents or solvent mixtures. 

Chem. Descrip. Calcium sulfonate, mineral spirits Uses Wetting agent/dispersantfor inorg. and org. pigments in broad range of resins incl. alkyd, epoxy, chlorinated rubber, bitumen, polyurethane, acrylic, and polyester... 

Chem. Descrip. Mixt. of surf.-act. basic and acidic fatty acids in xylene Uses Wetting agent, dispersant, deflocculant, antiflooding agent for solv.-based paints, alkyd, epoxide, chlorinated rubber, bitumen, polyurethane, and polyester systems... 

Bull A.L. and W.C. Vonk. 1984. Thermoplastic Rubber/Bitumen Blends for Roof and Road. Thermoplastic Rubbers Technical Manual, TR 8.15. London Shell International Petroleum Company Ltd. 

To empty the open testing cylinder, turn it upside down and place it with the opening down on a 0.5 1 metal box against the inner wall of an oven preheated to 160°C 5°C. Allow it to stand for 30 to 35 min for penetration grade bitumen and for residues from emulsion or cut-back and for 40 to 45 min for binders containing polymers or for rubber-bitumen. 

It is noted that the durabihty of asphalt concrete pavements is determined by the time of the trunk cracks formation in the poljmier-containing composites in the modified by elastomers (e.g., by rubber) bitumenous binder of asphalt. Developed by the authors [ 1 ] previously the theory of the cracks propagation in heterosystems has allowed to investigate the problem of the cracks propagation in the rubber-bitumen composite. This investigations show that most effectively to prevent the trunk cracks formation in asphalt concrete can ultrafine mbber particles (150-750 run) in a bitumenous binder of asphalt. 

FIGURE 3.2 Calculated dependences of the relative durability W of cyclic loaded rubber-bitumen binder samples on the sizes of the rubber particles introduced into the bitumen. Curve 1 - at an average mechanical stress in the pavement a = 2.5 MPa. 

Note (1) Sealant types are listed in order of increasing initial cost the list does not claim to be comprehensive. (2) Gun-grades are listed for joints in horizontal surfaces, the following self-levelling types are available (a) hot-poured bituminous and rubber/bitumen (b) cold-poured polysulphide and polyurethane. 

Both woven and non-woven geotextiles can serve as moisture barriers when impregnated with bituminous, rubber-bitumen, or polymeric mixtures. Such impregnation reduces both the cross-plane and in-plane flow capacity of the geotextiles to a minimum. However, for liquid containment applications, what is referred to as a GCL will be more effective. 

Journal of Applied Polymer Science 77, No.3,18th July 2000, p.586-601 DYNAMIC MECHANICAL AND THERMAL STUDY OF VARIOUS RUBBER-BITUMEN BLENDS... 

Navarro, F.J., Partal, P., Martinez-Bosa, F.J., and Gallegos, C. (2010) Novel recycled polyethylene/ground tire rubber/ bitumen blends for use in roofing applications Thermo-mechanical properties. Polym. Test., 29, 588-595. 

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