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将工业生产的废料粉煤灰和价格相对低廉的玻璃纤维应用到水泥土中,运用正交试验方法,通过室内无侧限抗压强度试验,研究了玻璃纤维粉煤灰水泥土的无侧限抗压强度的影响因素及其发展规律。试验研究表明:在水泥土中掺入一定量的粉煤灰和玻璃纤维可以明显地提高水泥土的无侧限抗压强度。通过正交试验各个因素分析可得:龄期和水泥掺量对水泥土强度的影响较大,其次是粉煤灰,而玻璃纤维对强度的影响较小;同时对水泥、粉煤灰、玻璃纤维3个因素对玻璃纤维粉煤灰水泥土强度增长机理进行分析得到:水泥的水化是玻璃纤维粉煤灰水泥土强度增长的主要来源;粉煤灰的作用主要体现在填充效应、水化效应和形态效应3个方面;玻璃纤维的主要作用为固结加筋。
The industrial production of waste fly ash and relatively inexpensive glass fiber applied to the cement soil, the use of orthogonal test methods, through the indoor unconfined compressive strength test, the fiberglass fly ash cement soil unconfined Influencing factors of compressive strength and their development. Experimental studies show that cementing soil with a certain amount of fly ash and glass fiber can significantly improve the unconfined compressive strength of cement-soil. Through the orthogonal test of various factors can be obtained: age and cement content on the strength of cement soil greater impact, followed by fly ash, while the glass fiber has little effect on the strength; the same time, cement, fly ash, glass Fiber three factors on the strength of glass fiber fly ash cement soil growth mechanism was analyzed: cement hydration is the main source of fiberglass fly ash cement strength growth; the role of fly ash mainly in the filling effect, hydration Effects and morphological effects of three aspects; the main role of glass fiber reinforced consolidation.