کلیدواژهها
عنوان مقاله English
نویسندگان English
Abstract:
Recent experiments and analytical investigations have shown that the mechanical behavior of
concrete is strongly dependent on its microstructure. However, the concrete behavior is
composed of three phases as grains, cement paste and interfacial transition zone. The grains
type, size and distribution of aggregate affect the concrete's characteristics. Because of the
random distribution and size variation of aggregate in concrete, the modeling of concrete's
behavior based on component in meso structure is difficult and so we must use simple
assumption.
In this paper, through mixing design and grading curve, a simple method was developed to
replace real aggregate with equivalent sphere aggregate with effective diameter.
So we can use simple methods instead of complex numeral and randomness or X ray methods
to find effective diameter and to determine two arrangements with maximum and minimum
aggregate volume as a repeatable basical element. As a result, we can use this element for
modeling the behavior of sample concrete in meso scale and three phases.
کلیدواژهها English
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