Technological Damage to Concrete and Operation of Reinforced Concrete Structures

Dorofeyev, V. S.; Myronenko, Igor; Pushkar, Natalia

doi:10.30525/978-9934-588-86-0.09

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“…Since the carbonate filler satisfies the condition FN ≈ FВ, then, according to the conclusions made, the optimal ratio of the sizes of filler particles and binder grains is within dN/dВ<1.0. The most important characteristic of the self-formation of a hardening system [3,4] is the change in its structural strength [14,15]. There is a spatial and temporal reformation of the structure with a modification of the type and strength of the bonds between its individual elements.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Technological Damage on the Properties and Reliability of Construction Materials and Structures

Dorofeev

Myronenko

Pushkar

2022

AMM

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The effect of the quantitative and qualitative composition of mixed binders on the physical and mechanical properties of cement compositions has been experimentally established. A cement stone with a different amount and dispersion of mineral fillers was considered. The research results showed that the plastic strength of the hardening system depends on its initial composition. The defects embedded in the material during its technological processing into the product determine the local stress-strain state of the structure, the nature of cracking and the fracture surface. The effect of technological damage on the mechanical characteristics and the nature of cracking of cement compositions are shown. The possibility of reducing the material consumption of construction materials by 15-21 wt.% due to the use of fillers that are optimal in appearance and quality composition has been proved.

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Section: Resultsmentioning

confidence: 99%