| Summary: | 碩士 === 國立海洋大學 === 河海工程學系碩士在職專班 === 90 === ABSTRACT
Soil improvement using Grouting method has become very popular and widely accepted in recent years. It uses simple machine which can be operated easily and installed quickly. The machine can be practiced in small area. The setting material is cement. It is very popular material and very easy to obtain.
The project of this study is to evaluate the performance of grouting by using a few Fly Ash or Slag instead of Cement. Fly Ash and Slag are the industrial residuals, if they can be reused, not only the cost of installation can be cut down but also the amount of residuals be reduced. It is also good for environmental consideration.
In this study, the proportion of setting material is shown as follows:
(A) 1. Water : Cement 10:10
(B) 2. Water : Cement : Fly Ash 10:9:1
(C) 3. Water : Cement : Fly Ash 10:8:2
(D) 4. Water : Cement : Slag 10:9:1
(E) 5. Water : Cement : Slag 10:8:2
The test results show that the compression stress of (B) is 82.60% to 97.67% that of (A). The compression stress of (D) is 81.17% to 86.42% that of (A). Therefore, compression strength of grouting with 10% fly ash or slag by weight instead of cement could be accepted.
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