Study on making colorful concrete using incinerator slag

• Main Authors: Yong-jia Chen, 陳勇嘉
• Other Authors: Wen-Guey Chung
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/29986063004421133063

碩士 === 國立屏東科技大學 === 土木工程系所 === 100 === The Environmental Protection Department's statistics, Taiwan 24 incinerator, within 2011, annual outputs of slag after incineration capacity of 1,300,000 tones, bottom slag incineration capacity of 100,000 tones, accounted for about 77% of total slag. Environmental Department to reached "zero abandoned, and resources full recovery, and garbage zero buried" of environmental vision, not only in "garbage incineration slag then using promoting plans" regulations by properly processing of incineration bottom slag, may then using concrete mixed with material, and asphalt concrete and brick products added material, and road engineering level ingredients, uses, and 99 annum on June 1 to ring department waste word No. 0990049699, letter notice "garbage incineration slag then refuse with promoting plans award grants paragraph practice do points", County Municipal Government meet to promote waste incineration bottom slag refuse policies, is expected to 2012 year domestic waste incineration bottom slag recycling rate will be 82%. These large quantity of incineration bottom slag, if they can refuse to replace concrete aggregates in the Central, not only can process a lot of bottom slag incineration to address Dumping buried issue, or in response to sand and enriching the shortage of construction engineering, reduce the use of natural gravel mining, thereby reducing the cost of building materials. This research primarily aimed at incineration bottom slag renewable materials used instead of coarse aggregate in concrete the best replacement rate, making production of concrete to meet the requirements of strength. Two item variables for test analysis such as cement ratio (0.58, 0.55 and 0.50) and bottom slag coarse material replaced natural rough aggregate percentage (0%, 20%, 40%, 60%, 80% and 100%), then respectively selected appropriate of material ratio to making diameter 10cm cylindrical type circular cylinder, as compressive strength test analysis of with, period through compressive strength test data, inductive was meet concrete design strength demand of bottom slag then raw best replaced rate of material ratio.And cement ratio 0.55, bottom slag coarse material replaced natural rough aggregate percentage (0%, 30%, 50%, and 80%) make color concrete to analysis diversity of color compare with adding the stag. Eventually, use the bottom slag aggregates replace the natural aggregate making the landscape seats of color concrete, as a practical application.Test data and statistics showed that in three different water cement ratio (0.58, 0.55 and 0.50) proportion of mix made of concrete, bottom slag coarse material replaced the rates between 40%~60% compressive strength is the highest, but bottom slag coarse material replace rate above 80% the compressive strength is relatively low.Color analysis results showed that bottom slag aggregates apply to color concrete, without affecting it’s color rendering.Replace concrete with bottom slag coarse material in the 50% of coarse-grained materials, do not have much effect on concrete strength. This result shows that the incineration bottom slag in raw meal replacing concrete part of the coarse aggregate, specific and feasible and can be played not only waste resource recycling effectiveness, increase reuse of bottom slag incineration utilization, on the sustainable development of domestic environmental resources has on the real value of help.