Next Article in Journal
Grafting of Hindered Phenol Groups onto Ethylene/α-Olefin Copolymer by Nitroxide Radical Coupling
Next Article in Special Issue
Drag Reduction Using Polysaccharides in a Taylor–Couette Flow
Previous Article in Journal
Reorganizing Polymer Chains with Cyclodextrins
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Polymers 2017, 9(12), 672; https://doi.org/10.3390/polym9120672

Effect of Superabsorbent Polymer on the Properties of Concrete

1
College of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China
2
College of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, China
3
Multi-Functional Design and Research Academy, Zhengzhou University, Zhengzhou 450052, China
*
Author to whom correspondence should be addressed.
Received: 8 November 2017 / Revised: 1 December 2017 / Accepted: 2 December 2017 / Published: 4 December 2017
(This article belongs to the Special Issue Polymers for Modern and Advanced Engineering Applications)
Full-Text   |   PDF [3200 KB, uploaded 4 December 2017]   |  

Abstract

Incorporating superabsorbent polymer (SAP), which has the abilities of absorption and desorption in concrete can achieve the effect of internal curing. The influences of the volume, particle size and ways of entrained water of SAP on the workability, compressive strength, shrinkage, carbonation resistance and chloride penetration resistance of concrete were analyzed through the macroscopic and microscopic test. The results show that pre-absorbed SAP can increase the slump of the mixture, but SAP without water absorption and pre-absorbed SAP with the deduction of internal curing water from mixing water can reduce the slump. The improvement effects of SAP on compressive strength of concrete increase gradually with the increase of age. Especially from 28 days, the compressive strength of concrete increases obviously. At later age, the compressive strengths of SAP concrete under natural curing environment exceed the strength of reference concrete under natural curing environment and nearly reach the strengths of reference concrete under standard curing environment. SAP effectively reduces the shrinkage of concrete, improves the concrete’s abilities of carbonation resistance and chloride penetration resistance. The microscopic test results show that SAP can effectively improve the micro structure and make the pore structure refined. When SAP is added into concrete, the gel pores and small capillary pores are increased, the size of big capillary pores and air pores are reduced. View Full-Text
Keywords: concrete; superabsorbent polymer; internal curing; workability; strength; shrinkage; durability concrete; superabsorbent polymer; internal curing; workability; strength; shrinkage; durability
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Dang, J.; Zhao, J.; Du, Z. Effect of Superabsorbent Polymer on the Properties of Concrete. Polymers 2017, 9, 672.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top