新型生态人工鱼礁材料性能试验研究

Experimental study on the performance of new ecological artificial reef materials

随着近海资源逐渐面临枯竭的危险,新型人工鱼礁材料的研发将成为修复和改善生态环境,增殖和优化渔业资源的关键要素。探索人工鱼礁新材料性能效果研究有助于节约建设成本,科学评估鱼礁区建设效果。利用以矿渣-碱渣-钢渣-粉煤灰体系为主要组分的胶凝材料,以粒径为5~10 mm单粒级的废陶瓷为骨料,制备出了具有较高强度的人工鱼礁透水混凝土。通过水化热测定仪(TEM AIR)对高吸水性树脂(SAP)掺量下水泥浆的水化进程进行研究;探索新型多孔鱼礁海洋环境下的海藻种类与附着量。试验结果表明:预吸水SAP对水泥早期水化程度均有所提高,同时在相同水胶比、相同粒径情况下,水泥的水化反应速率随着SAP添量的增加而降低,但也高于相同水胶比,未加SAP的组别。同时,制作出的鱼礁海洋相容性良好,有大量水生生物附着。

As offshore resources are gradually facing the danger of depletion,the development of new artificial reef materials will become a key element in the restoration and improvement of the ecological environment,the proliferation and optimization of fishery resources.Exploring the performance effects of new materials for artificial reefs can help to save construction costs and scientifically evaluate the construction effect of reef areas.The artificial reef with high strength was prepared by using the cementitious material with slag-alkali slag-steel slag-fly ash system as the main component and the waste ceramic with the particle size of 5~10 mm as the aggregate,prepared high strength artificial reef pervious concrete.The hydration process of cement slurry under superabsorbent resin(SAP)was studied by hydration heat meter(TEM AIR).The species and adhesion of seaweed under the marine environment of new porous reef were explored.The results show that the pre-absorbed SAP improves the early hydration degree of the cement.At the same water-to-binder ratio and the same particle size,the hydration reaction rate of the cement decreases with the increase of SAP,but it is also high.In the same water-to-binder ratio,no SAP group was added.At the same time,the prepared reef has good marine compatibility and a large number of aquatic organisms are attached.