Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Initial Curing of Portland Cement Concrete Cylinders
Colorado Ready Mixed Concrete Association (CRMCA) task force members feel that AASHTO T 23-93, Section 9.2.1; 'Standard Specification for Making and Curing Concrete Test Specimens in the Field' allows wide variance when describing the initial curing condition requirements. Absence of specific direction, in regards to initial curing, leads to non-uniform practices by field technician and inconsistent 28-day compressive strength results. It is believed that this inconsistency has led to increased costs associated with unnecessary over-design of Portland Cement Concrete (PCC) mixes, further testing of in-place PCC and the time-consuming claims process. CRMCA Technical Education Committee organized a task force to study the effect of various initial curing conditions on the compressive strength of concrete cylinders. Five different initial curing conditions and two in-place conditions were tested.
Initial Curing of Portland Cement Concrete Cylinders
Colorado Ready Mixed Concrete Association (CRMCA) task force members feel that AASHTO T 23-93, Section 9.2.1; 'Standard Specification for Making and Curing Concrete Test Specimens in the Field' allows wide variance when describing the initial curing condition requirements. Absence of specific direction, in regards to initial curing, leads to non-uniform practices by field technician and inconsistent 28-day compressive strength results. It is believed that this inconsistency has led to increased costs associated with unnecessary over-design of Portland Cement Concrete (PCC) mixes, further testing of in-place PCC and the time-consuming claims process. CRMCA Technical Education Committee organized a task force to study the effect of various initial curing conditions on the compressive strength of concrete cylinders. Five different initial curing conditions and two in-place conditions were tested.
Initial Curing of Portland Cement Concrete Cylinders
R. Akhavan (Autor:in) / M. Malik (Autor:in)
1999
56 pages
Report
Keine Angabe
Englisch
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