Polymer Modified Bitumen: Review

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Abstract. Three commercial road emulsions on the basis of petroleum bitumens differing by their production method (oxidated, distillation and modified bitumens) and Redicote E-11 emulsifier were obtained. The obtained emulsions were used for the production of Slurry Seal and thin-layer road coatings on its basis. The coatings based on modified oxidated bitumen have more advantages compared with those based on oxidated bitumen. The expensive distillation bitumen may be exchanged for modified oxidative one to use it in a Slurry Seal technology. We propose to use the indene-coumarone resin for oxidated bitumen modification to improve its adhesive and cohesive properties.

“…According to the procedures described in Subsection 2.2.1 and Ref. [12,25] we obtained ICR with different softening temperatures ( Table 5).…”

Section: Be Productionmentioning

confidence: 99%

“…The modification time is 1 h, the modification temperatures are given in [11]. The amount of polymer is determined by the experiments based on the need to obtain BMP with T s = 325-327 K.…”

Section: Bmp Productionmentioning

confidence: 99%

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Using Bitumen Emulsions Based on Oxidated, Distillation and Modified Oxidated Bitumens for Slurry Seal Production

Pyshyev¹,

Grytsenko²,

Solodkyy³

et al. 2015

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“…The energy states of complex chemical or physical systems are permissible to assess as their empirical (effective) values, or as the activation energy of viscous flow [7,8]:…”

Section: Coefficients Of Equations Evaluation and Activation Energy Omentioning

confidence: 99%

Coal Tar Viscosity when Dissolving Coke Oven Gas Deposits

Pasternak¹,

Bannikov²,

Смирнова³

2017

Abstract. 1The data on the viscosity of the tar when dissolving non-substituted aromatic compounds (naphthalene and anthracene) were received. The viscosity coefficients of available empirical equations when adding the naphthalene and anthracene were determined. The rheological properties of the tar on a Brookfield viscometer were investigated with imitative additives. Irregular values of energy activation of viscous flow were established with the additive of certain amount of naphthalene that also correlated with the minimum value of the constant K2 of Walter equation and constant В in the equation of CornelissenWaterman. The above data allow to recommend the temperature ranges and optimal amount of naphthalene for obtaining coal tar with improved rheological properties.

“…One of the ways of LFCT rational usage is obtaining of coumarone-indene resins (CIR) on its basis [2][3][4][5][6][7]. CIR may be obtained according to radical [2,6] or ionic [2,7] mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Obtaining of coumarone-indene resins based on light fraction of coal tar 1. coumarone-indene resins with carboxy groups

Bratychak¹,

Ripak²,

Namiesnik³

et al. 2017

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Abstract.1 Coumarone-indene resins (CIR) with carboxy groups were synthesized via cooligomerization of unsaturated compounds presented in light fraction of coal tar and its fraction boiling out within 423-463 K with the addition of such industrial monomers as styrene, maleic anhydride, glycidyl methacrylate and methacrylic acid. 2,2`-Azobis(2-methylpropionitrile) in the form of 0.2 M solution in toluene was used as an initiator. The effect of monomers nature, initiator amount, temperature and reaction time on the yield and characteristics of resulted CIR has been determined. The structure of the synthesized CIR was confirmed by IR-spectroscopy. The conversion of unsaturated compounds during synthesis of CIR with carboxy groups was determined by gas-liquid chromatography.