Abstract
Fly ash and blast-furnace slag containing binders are frequently used in the construction industry and it is important to know the extent of autogenous shrinkage and its (ideal) mitigation by superabsorbent polymers in these systems as a function of their age. In this paper, the autogenous shrinkage was determined by manual and automated shrinkage measurements. Autogenous shrinkage was reduced in cement pastes with the supplementary cementitious materials versus Portland cement pastes. At later ages, the rate of autogenous shrinkage is higher due to the pozzolanic activity. Internal curing by means of superabsorbent polymers is successful, independent of this long term higher rate of shrinkage in mixtures with supplementary cementitious materials.
| Original language | English |
|---|---|
| Journal | Cement and Concrete Research |
| Volume | 74 |
| Pages (from-to) | 59-67 |
| Number of pages | 9 |
| ISSN | 0008-8846 |
| DOIs | |
| Publication status | Published - 2015 |
Keywords
- Cement paste (D)
- Fly ash (D)
- Granulated blast-furnace slag (D)
- Polymers (D)
- Shrinkage (C)
- Blast furnaces
- Cements
- Construction industry
- Fly ash
- Portland cement
- Shrinkage
- Slags
- Autogenous shrinkage
- Cement paste
- Fly ashes (d)
- Granulated blast-furnace slags
- Portland cement paste
- Shrinkage measurements
- Superabsorbent polymer
- Supplementary cementitious material
- Polymers
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