Experimental Research On Mechanical Properties And Durability Of Organic Imitation Steel Fiber Lightweight Aggregate Concrete

At present engineering architectures are being constructed on a large-scale in our country and Concrete plays an important role. Because of its heavy and brittle performance limits its further development and application of space. In order to improve the own defect of concretes property, many researchers studied and summed up many good methods, that is to replace the traditional aggregate of lightweight aggregate, the incorporation and weight, which can effectively improve the concrete toughness and ductility, inhibit the increase of concrete cracks in concrete which can improve the durability of concrete.Natural pumice is rich in the Inner Mongolia area. This paper focuses on the performance of like organic steel fiber lightweight aggregate concrete mechanical properties, corrosion resistance, frost resistance. In order to obtain imitation of steel fiber reinforced lightweight aggregate concrete with good performance taking Inner Mongolia Helingeer area as the natural pumice lightweight aggregate and provides a basis for the concrete application of the Inner Mongolia region and northern cold area.In mechanical properties, we studied the impact like flexural strength, compressive strength and splitting tensile strength of like organic steel fiber lightweight aggregate concrete. In durability,we mainly studied the impact of different imitation steel fiber content to mass loss and relative dynamic elastic modulus of lightweight aggregate concrete under different the freeze-thaw cycle and dry wet cycle of erosion.The experiment shows:the mechanic properties improved significantly when mixed with imitation organic steel fiber in frost resistance, anti erosion performance. It can provide a basis for the application of northern region can imitation organic steel fiber reinforced lightweight aggregate concrete.