Title:
Practical Implementation of Superabsorbent Polymers for Internally Cured Concrete
Author(s):
Ajuonuma
Publication:
Web Session
Volume:
ws_S24_Ajuonuma.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
3/23/2024
Abstract:
The use of superabsorbent polymer (SAP) particles as internal curing agents in cementitious mixtures has been the subject of recent research especially to mitigate durability challenges. This research evaluated SAP delivery method for effective field implementation, assessing the influence of mixture composition on the internal curing performance of concrete containing commercial SAP formulation, Type 1L cement and supplementary cementitious materials (SCMs), slag and Nanosilica. Six mixture compositions comprising of slag replacement (30% by wt. of cement), 0.2% SAP at w/c ratio (0.44) were cast. Mixtures characterization was done by assessment of workability (slump), air content., hydration kinetics (Isothermal calorimetry), compressive (7, 28, 56, 90 days) and flexural (4 days) strength, thermogravimetric analysis, rate of water absorption, air-void analysis, scaling resistance, electrical resistivity, drying shrinkage at different curing condition.