2018, Vol. 5, No. 2. - go to content...

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DOI: 10.15862/10SATS218 (https://doi.org/10.15862/10SATS218)

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Voronin V.V., Shuvalova E.A., Odincov A.A., Arkhangelskiy E.A. The use of additives to accelerate the gain in strength as an alternative to the steam treatment of concrete. Russian Journal of Transport Engineering. 2018; 5(2). Available at: https://t-s.today/PDF/10SATS218.pdf (in Russian). DOI: 10.15862/10SATS218

The use of additives to accelerate the gain in strength as an alternative to the steam treatment of concrete

Voronin Viktor Valerianovich
Moscow state university of civil engineering, Moscow, Russia
E-mail: tvvib@mail.ru

Shuvalova Elena Alexandrovna
Moscow state university of civil engineering, Moscow, Russia
E-mail: Sh.Elena@list.ru

Odincov Artem Andreevich
Moscow state university of civil engineering, Moscow, Russia
E-mail: artemka.981@yandex.ru

Arkhangelskiy Egor Alekseevich
LLC «BASF Construction systems», Moscow, Russia
E-mail: ea.arkhangelskiy@gmail.com

Abstract. The article presents the results of studies to determine the effectiveness of the use of Master Glenium ACE 430 and Master x-Seed 100 additives to accelerate the kinetics of the concrete strength gain. For the production of reinforced concrete products for road construction and aerodrome smooth slabs, the most common method was the heat treatment of reinforced concrete products with saturated steam in chambers of various modifications. Since the process of steam treatment is energy-consuming and time-consuming, it requires a large investment in the installation and maintenance of the equipment, the authors proposed an alternative method of production of concrete products for transport construction. For testing were manufactured two batches of samples of concrete class B30, one of which is with the use of additive Master X-Seed 100 and the second without the use. A batch of samples without additives was placed in a heat-moisture treatment chamber, the total running time of which was 12 hours, and the second batch of samples with additives was placed in a normal hardening chamber at a constant temperature of 20 °C and a relative humidity of 95 %. During the testing process, the dynamics of strength gain of samples from each batch was monitored. Compression strength indicators were measured at the expiration of 12 hours, 24 hours, 3 days and 28 days on the Multi-purpose Electromechanical machine Form+Test MEGA 6-3000-100. As a result of the tests, the authors found that the use of these additives in an amount of 0.5 % per 1 cubic meter of concrete mixture by weight of cement, accelerates the gain of strength of samples by 3-4 % and provides the necessary strength characteristics for the corresponding class of concrete.

Keywords: steam treatment; additives; polycarboxylate; Master Glenium ACE 430; Master X-Seed 100; kinetics of concrete strength gain; moisture chamber

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