ADDITIVES FOR COLD ASPHALT-CONCRETE MADE FROM EMULSION-MINERAL MIXES
Abstract
The article considers the additives use for cold asphalt emulsion mixes. Urgency of the issue consists in the necessity of usage justification and regulation of additive for cold mixes properties adjustment. The article is represented as the general result of analysis of regulatory, literary and other sources related to additive using for CAEM.
The main part of the article proposes and justifies the classification of CAEM additives according to their functional purpose (the main purpose of additive): increasing of strength, water resistance, durability, regulating curing and technological modifiers. Depending on the purpose the criteria of technical efficiency of additive using are presented. For each criteria provided the methods determining one or more quality indicators. The quality indicator changing is indicator of additive efficiency. There is provided the formula determining the efficiency of CAEM curing period reduction additives. As an example provided efficiency calculation and evaluation of additives for regulation (acceleration) CAEM curing according to the previously published experimental data. The efficiency of curing regulating additives was determined according to the function of temporal changes of CAEM compressing strength and dynamic modulus of elasticity.
The article provides the example list of materials that could be or currently used as additives for cold mixes. The conclusion states that proposed classification and criteria give base to purposive regulation of cold asphalt emulsion mixture compositions and their properties.
About the Authors
P. V. Vavilov
Gorremavtodor Mingorispolkoma Gorremavtodor Mingorispolkoma” (City Automobile Road Repair Organization of Minsk City Executive Committee), Minsk
Belarus
Belarus
S. E. Kravchenko
Belarusian National Technical University
Belarus
Belarus
Associate Professor, PhD in Engineering
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Review
For citations:
Vavilov P.V., Kravchenko S.E. ADDITIVES FOR COLD ASPHALT-CONCRETE MADE FROM EMULSION-MINERAL MIXES. Science & Technique. 2015;(6):44-48. (In Russ.)
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