Autogenous deformation of Portland cement paste blended with blast furnace slag measured by mini-TSTM

Title: Autogenous deformation of Portland cement paste blended with blast furnace slag measured by mini-TSTM
Author(s): Jian Zhou, Guang Ye, Erik Schlangen, Klaas van Breugel
Paper category : conference
Book title: International RILEM Conference on Volume Changes of Hardening Concrete: Testing and Mitigation
Editor(s): O. M. Jensen, P. Lura, K. Kovler
Print-ISBN: 2-35158-004-4
e-ISBN: 2351580052
Publisher: RILEM Publications SARL
Publication year: 2006
Pages: 367 - 374
Total Pages: 8
Nb references: 17
Language: English

Abstract: The autogenous deformation of Portland cement paste blended with 0%, 50% and 70% blast furnace slag (BFS) was measured by the Mini-Temperature Stress Testing Machine (TSTM) developed at Delft University of Technology. The experimental result shows that the autogenous deformation can be characterized by four stages. The cement paste first expands for a short time, and then undergoes a contraction. After a stable stage, the sample starts to contract again. At early age, the low reactivity of BFS leads to a slower hydration process and a smaller deformation. After the reaction of BFS is activated, the Portland cement paste blended with BFS shows a larger autogenous deformation than the pure Portland cement paste at later stages.

Online publication: 2006-07-30
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580052.039