AI Article Synopsis
- The study examined how superabsorbent polymer (SAP) affects concrete by looking at compressive strength, chloride penetration, drying shrinkage, and pore size distribution while using a water-reducing agent (WRA) to maintain workability.
- The results indicated that as more SAP was added, more WRA was needed, with the best compressive strength occurring at 1.5% SAP in the mix.
- Increased SAP content led to a significant reduction in drying shrinkage (31-41% decrease at 2.0% SAP), but more than 2.0% SAP negatively impacted both workability and compressive strength.
Article Abstract
In this study, the effect of internal pores formed by a superabsorbent polymer (SAP) was analyzed by evaluating the compressive strength, chloride penetration depth, drying shrinkage, and pore size distribution of SAP-containing concrete, while securing workability using a water-reducing agent (WRA). The experimental results showed that the amount of WRA necessary increased as the amount of SAP added increased, and that the compressive strength was the highest when the SAP content was 1.5% of the concrete mix. Drying shrinkage tended to decrease as the SAP content increased, and it decreased by approximately 31-41% when the SAP content was 2.0% compared to that of the reference mix. The SAP expanded by approximately three times inside concrete, and it was distributed within the internal pores of air-entrained concrete. The optimal SAP content in concrete mix was 1.5%, and an SAP content of 2.0% or higher adversely affected the workability and compressive strength.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8465103 | PMC |
| http://dx.doi.org/10.3390/ma14185199 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!