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通过正交试验研究了用作制备高强度人工鱼礁的钢渣--矿渣--熟料--石膏体系胶凝材料的强度.净浆正交试验表明:钢渣∶矿渣的复合比为5∶3,并与10%的水泥熟料和10%的脱硫石膏复合的胶凝材料具有较高的强度.以优化后的胶凝材料代替水泥,并以热闷法稳定化的钢渣颗粒为骨料,可以制备出抗压强度达到50 MPa以上的人工鱼礁混凝土.利用X射线衍射和扫描电镜分析净浆的水化过程,发现体系在早期水化主要生成AFt相和C--S--H凝胶,在后期钢渣和矿渣的火山灰活性反应对强度的增长起主要作用.
The strength of the slag-slag-clinker-gypsum system cementitious materials used to prepare high-strength artificial reefs was studied by orthogonal test.The orthogonal test of the paste shows that the slag-slag complex ratio is 5: 3 , And with 10% of cement clinker and 10% of the composite gypsum cementitious material has a higher strength to optimize the cementitious materials instead of cement, and heat nausea method to stabilize the slag particles as aggregate, The artificial reef concrete with the compressive strength above 50 MPa can be prepared.The hydration process of the paste was analyzed by X-ray diffraction and scanning electron microscopy and it was found that the system mainly formed AFt phase and C-S-H condensate during early hydration Gum, in the latter part of slag and slag pozzolanic activity on the increase of strength plays a major role.