How to build crack-free durable concrete structures: concrete hardening technology including modelling of shrinkage, creep and temperature of young concrete and its influence on durability and lifetime
2009 (English)In: ISLECI 2009: The 4th International Symposium on Lifetime Engineering of Civil Infrastructure / [ed] Xianyan Zhou; Ayaho Miyamoto; Sang-Ho Lee; Yan Xiao, Central South University of Forestry and Technology, China , 2009Conference paper (Refereed)
Control of thermal and shrinkage cracking in hardening concrete is of great importance to ensure desired service life and function of concrete infrastructures. Making reliable stress estimations, and thereby conclusions about cracking risks caused by temperature movements and shrinkage involves advanced modelling of material properties and structural restraint. The paper presents the main outline of a model for description of material properties needed. Special focus is given to a creep model denoted LLM (Linear Logarithmic Model), which is shown to be robust, easy to use, and capable to extrapolate short-term test into long-term effects. Applications of the presented model using the computer program ConTeSt Pro demonstrates that it can be used to decide what measures to be taken to minimize the risk of cracking during the hardening phase for concrete structures.
Place, publisher, year, edition, pages
Central South University of Forestry and Technology, China , 2009.
Research subject Structural Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-31970Local ID: 64c60fb0-e054-11de-bae5-000ea68e967bOAI: oai:DiVA.org:ltu-31970DiVA: diva2:1005204
International Symposium on Lifetime Engineering of Civil Infrastructure : 26/10/2009 - 28/10/2009
Godkänd; 2009; 20091203 (elfgren)2016-09-302016-09-30Bibliographically approved