Abstract: In order to study the compressive properties of aluminum foam-steel fiber concrete composite layer under static load, the universal testing machine was used to test the pore size of aluminum foams of 3 mm to 6 mm, 6 mm to 9 mm, 9 mm to 12 mm. The compressive properties test was carried out on the aluminum foam-steel fiber concrete composite layer specimens with steel fiber content (volume fraction) of 0%, 0.5%, 1.0% and 1.5%, and the mixture properties were analyzed. Based on different pore sizes of aluminum foam and according to the test data, the influence of aluminum foam on the compressive resistance of the aluminum foam-steel fiber reinforced concrete composite layer specimens was analyzed, and the rules were summarized. The results show that when the steel fiber content is 1.5%, the compressive strength of the steel fiber concrete cube increases by 22.6%, positive correlation between them. The compressive strength of foam aluminum wire reinforced concrete composite layer is about 5.3% to 8.2% higher than the steel fiber concrete, and the static compressive stress-strain curves of the aluminum foam-steel fiber concrete composite layer have a platform area, and the platform area gradually becomes longer with the increase of the aperture of the aluminum foamed.

Key words: aluminum foam, steel fiber, elastic modulus, aperture effect, composite layer, static compressive property