| Summary: | 碩士 === 淡江大學 === 建築學系碩士班 === 93 === Recently our government is very energetic to push about the green building and to develop eternally. To reduce garbage of our building and civil engineering is the most important subject. In 1998 the garbage is about 5739 tons. The garbage of enterprise is about 2839 tons about 49.47 percent of the garbage in 1998. The garbage of construction and civil engineering is about 2000 tons about 34.9 percent of the total garbage in our country. The general garbage is about 900 tons about 15.63 percent of the total garbage in our country. (The data were published from our government.) After the earthquake of the well-known name 921, the garbage of construction and civil engineering would increase greatly and quickly. The most garbage of the construction and civil engineering would be use to fill up the low-lying land or the coastal line. For the reason the most important subject of our country is to reduce the garbage of construction and civil engineering and to use the recycled coarse aggregates in construction engineering.
In our country the most use in construction engineering are the reinforced concrete and steel reinforced concrete. But the freestone in our river-bed would be dried up quickly. From 1997 our governments begin to liberalize the entrance of freestone. But it is very difficult to hold the balance of the natural resource. To avoid the destruction of our natural environment we would take study of recycled aggregates and garbage from construction engineering. The greatest purpose is to take use the garbage material in our construction or building.
The recycled aggregates and garbage would be used to fill up the low-lying land or the coastal line. So the research of this thesis is to take 7 groups of water-cement ratio and 4 groups of slumps in batch. From the designed recipe, slump test, mixed test, take groups of concrete samples, curing, and compressive strength tests. To understand the statistics data from the experiments we will take PH tests and compressive strength from our concrete samples. The test data demonstrate that the compressive strength of recycled aggregates would be about 88 percent of the strength from general aggregates concrete in the same water-cement ratio. Besides we calculate the relationships from the water-cement ratio and compressive strength of 7days or compressive strength of 28 days.
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