Transactions on Engineering and Computer Science
Increasing the Early Strength of Concrete
Alexandrа Shyshkinа and Alexander Shyshkin
Abstract
The early compressive strength of concrete is investigated. The influence of complex organic ions and molecules of a number of non-electrolytes, due to the inhibitory effect of dissolved particles on the translational motion of water molecules in a solution, has been established. It was found that these substances alter the formation of concrete strength. The rate of formation of concrete strength in the early stages increases due to the dissolution of cement particles with structured water. It was found that the effect of complex organic ions and molecules of a number of non-electrolytes on the strength of concrete exceeds the effect of solid nanomodifiers, in particular, carbon nanotubes, silicon oxide, and others. When using complex organic ions and molecules of a number of non-electrolytes as individual modifiers of water used for concrete preparation, their optimal amount is 8 10-4...9 10-4% of the cement mass. The increase in the strength of concrete at an early age reaches 170%, and at the age of 28 days - 35%. The mechanism of action of modifiers of this type is that they structure water due to hydrophobic hydration and the effect of "small doses".
Keywords: Concrete; Strength; Complex organic ions; Non-electrolyte molecules; Nanomodifier; Cement; Oleate; Sodium.
Journal Information
- Journal Name: Transactions on Engineering and Computer Science
- Journal Short Name: Trans Eng Comput Sci
- Language: English
- Format of Publication: Online
- Starting Year: 2020
- Focus Subject: Engineering and Computer Science
- Publication Model: Online
- Frequency of Publication: Two Issue a Year
- Review Process: Single blind peer-review by referees
- Time to 1st Decision: 2 to 3 weeks from date of submission
- Time to Acceptance: 4 to 6 weeks, depending upon the required revision cycles
- Time to Publication: 1 to 3 weeks from date of final submission in the forthcoming issue
- DOI Prefix: 10.7620
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