Modern Engineering and Technology Solutions for Moisture-Proofing of Plain- and Reinforced-Concrete Underground and Buried Constructions and Structures

ABSTRACT

A principal factor effecting the durability of underground and buried structures is impact of water penetrating the building constructions and capable of causing both the destruction of concrete and corrosion of reinforcement, worsening the construction static properties and being prone to force it collapse. Besides, water penetrating the internal premises of the underground part of the structures deteriorates their service properties, disturbs the operation of the processing equipment, worsens the microclimatic conditions of the premises, etc. High-quality and durable water proofing, particularly of underground and buried plain- and reinforced concrete constructions, is expensive and labour intensive process: average cost of works is 0.1–0.5 % of the total estimate cost of the construction and assembly works; this kind of works accounts for 3 % of the total labour costs when erecting the structure [13]. As practice shows [13], in 90 % of cases the failure of underground and buried structures takes place for the very reason of failure of waterproofing; moreover the failure occurs at the early stage of operation which contributes to the accelerated wear-out of the load-carrying constructions. In most cases, the failures in operation of the water-proof systems result from erroneous choice of construction solutions, incorrect selection of insulating materials, unsatisfactory quality of the works performance and improper operation. At the same time, the repair of the waterproofing is a difficult, expensive and often also ineffective operation. To reduce the risk of occurrence of problems, it is therefore important to choose the right engineering and technology solutions for waterproofing systems designed for the whole service life of the structure with due account for all the adverse effects, which would exclude water leakages and reduce to the acceptable minimum the additional expenditures conditioned by the need of restoration of the waterproofing.

Keywords: waterproofing, plain- and reinforced-concrete constructions, waterproofing technology, waterproofing systems, preparation and repair of the construction surface, dry waterproofing mix, bituminous joint filler, injection waterproofing, silica gel.

For citation: Bursov N., Sidortsov A., Korzun A. Modern Engineering and Technology Solutions for Moisture-Proofing of Plain- and Reinforced-Concrete Underground and Buried Constructions and Structures. In: Contemporary Issues of Concrete and Reinforced Concrete: Collected Research Papers. Minsk. Institute BelNIIS. Vol. 8. 2016. pp. 29-52. https://doi.org/10.23746/2016-8-2

Full text in English:

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