摘要(英) |
The purpose of this research is using inertia material on concrete, however the definition of inertia material is cemented and pozzolanic material substance. In this research the inertia material comes from China mainland (Min Jiang) and then grind it until the Finest Modulus is 4500cm2/g, we call this material as grinded sand. With the calculated ratio we add it into concrete, this material can replace the fine cement, cement and fine material. The concrete is using the water ratio W/B (0.4, 0.58, 0.68). From this research it can carry out new character, stiffness, durability, appearance of the concrete and also we can find out the effect of grinded sand on the concrete.
The result of this research: from the appearance we can find out a lot of random crystal. After mix it in concrete, it can improve the ratio of fine material, workability and water saturation. From the test we can observe, after the chemical reaction the fine material particle will increase and after the activication it become SiO2, The result after adding this substance is pozzolanic effect and CaOH will gradually disappear. On the chemical reaction, the gap in the body will be replace by crystal from grinded sand and the result is we will get the rigid C-S-H cemented body. To prove the advance of using grinded sand, we can compare it’’s strength and durability with the normal concrete, then we will get positive result. |
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