研究目的
Investigating the pozzolanic reaction behavior of LED waste quartz sand (LEDWS) to obtain a valuable processing method for LEDWS in cement.
研究成果
LEDWS can be used as a pozzolanic material, partially replacing cement to reduce energy consumption and CO2 emissions. The strength of pastes incorporating 10% LEDWS approached that of ordinary Portland cement with increased curing time. The pozzolanic reaction of LEDWS with Ca(OH)2 formed additional CSH products, enhancing the mechanical properties of the cement.
研究不足
The study focused on the pozzolanic reaction behavior of LEDWS in cement and its mechanical properties. The potential environmental impact of LEDWS disposal was not extensively explored. The study also did not investigate the long-term durability of cement incorporating LEDWS under various environmental conditions.
1：Experimental Design and Method Selection:
The study investigated the pozzolanic reaction behavior of LEDWS in cement. The methodology included mechanical strength tests, DTA/TGA analyses, and FTIR spectroscopy to evaluate the pozzolanic capabilities of LEDWS.
2：Sample Selection and Data Sources:
LEDWS was collected from an optoelectronics corporation in northern Taiwan. The chemical components of the LEDWS were determined by X-ray fluorescence.
3：List of Experimental Equipment and Materials:
Equipment used included a Blaine fineness apparatus, STA6000 thermal analyzer for DTA/TGA analyses, and FTIR spectrometer. Materials included Type 1 Portland cement and LEDWS.
4：Experimental Procedures and Operational Workflow:
Pastes were prepared with a H2O-binder ratio of 0.40 and poured into cubes. Mechanical strength tests were performed after 7, 28, and 56 days. DTA/TGA and FTIR analyses were conducted at specified curing ages.
5：40 and poured into cubes. Mechanical strength tests were performed after 7, 28, and 56 days. DTA/TGA and FTIR analyses were conducted at specified curing ages.
Data Analysis Methods:
5. Data Analysis Methods: The degree of hydration and gel/space ratio were determined by the ignition method. FTIR spectra were analyzed to identify hydration products.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
