Polyfunctional modifier for bio-corrosion resistant high-performance fine-aggregate concretes
- DOI
- 10.2991/aime-17.2017.101How to use a DOI?
- Keywords
- high-performance concrete; low water demand binder; water-reducing ability; antifungal properties; bio-corrosion
- Abstract
Use of binders with low water demand opens prospects for obtaining high-performance concretes. A polyfunctional modifier based on resol-type resorcinol-furfural oligomers allows one to obtain binders with low water demand and high specific surface area, compressive strength, and water-reducing ability. This research demonstrates that a more intensive strength development for 1-2 days of curing is observed in concretes based on low water demand binders compared to the reference sample. During this process, a denser microcrystalline structure with no large-grained formations or visible defects is formed. It was proved that introduction of the optimum quantity of the modifier into a binder completely suppresses mold growth. Isolates of Aspergillus niger and Penicillium chrisogenum Thom fungi were used as the biological deterioration factor for specimen. Assessment of antifungal properties of resorcinol-furfural oligomers on a six-point scale (sample/environment) is presented. Strength properties of the concrete with the modifier in question are significantly increased due to the decrease of the water-cement ratio, the reduction of microfractures within the concrete, higher density of its structure, and absence of bio-corrosion. The resorcinol-furfural polyfunctional modifier can be used to produce innovative high-strength materials for use in additive manufacturing and further use of the produced articles in biologically active environments
- Copyright
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Valentina Anatolyevna Poluektova AU - Valentina Dmitryevna Mukhacheva AU - Julia Vladimirovna Denisova PY - 2017/07 DA - 2017/07 TI - Polyfunctional modifier for bio-corrosion resistant high-performance fine-aggregate concretes BT - Proceedings of the International Conference "Actual Issues of Mechanical Engineering" 2017 (AIME 2017) PB - Atlantis Press SP - 620 EP - 625 SN - 2352-5401 UR - https://doi.org/10.2991/aime-17.2017.101 DO - 10.2991/aime-17.2017.101 ID - Poluektova2017/07 ER -