CAJ | 학술논문

通过对掺加不同颜色废旧玻璃粉取代水泥制备的混凝土抗压强度试验和水泥净浆的微观检测,得出当玻璃粉掺量为10%和15%时,28 d抗压强度比基准混凝土的抗压强度高;当掺量为20%时,强度与基准混凝土相当;当掺量为30%以上时,混凝土的抗压强度随掺量的增加而降低;不掺加玻璃粉时,氢氧化钙结晶良好,而且尺寸较大.实验结果显示,随着玻璃粉掺量的增加,氢氧化钙的含量逐渐减少,同时结晶也越来越差.玻璃粉颜色对混凝土强度影响不大.
통과대참가불동안색폐구파리분취대수니제비적혼응토항압강도시험화수니정장적미관검측,득출당파리분참량위10%화15%시,28 d항압강도비기준혼응토적항압강도고;당참량위20%시,강도여기준혼응토상당;당참량위30%이상시,혼응토적항압강도수참량적증가이강저;불참가파리분시,경양화개결정량호,이차척촌교대.실험결과현시,수착파리분참량적증가,경양화개적함량축점감소,동시결정야월래월차.파리분안색대혼응토강도영향불대.
The glass powder of different colors was used to replace cement to make concrete samples.The compression strengths of samples were tested and the microscopic analysis of cement paste was carried out.The test results show that the 28 days compression strength of the samples was higher than those of the reference concrete samples when the contents of the glass were 10% and 15% respectively,and the compression strength was equal to the reference concrete when the content of glass was 20%,and strength went down as the glass content was 30% and above.Ca(OH)2 was well crystallized in the concrete when the glass was not added,and the crystals had relatively large size.However,as the content of the glass in the concrete went up,Ca(OH)2 content in the concrete decreased,the crystallization of Ca(OH)2 became worse.Different colors of glass powder had little effect on the compress strength of the concrete.