To improve the tensile properties of steel fiber–reinforced reactive powder concrete (SFRPC), we prepared aligned steel fiber–reinforced reactive powder concrete (ASFRPC) members by controlling the fiber distribution under a magnetic field. Four‐point bending tests were carried out to examine the flexural tensile properties of the SFRPC and ASFRPC members. In comparison with SFRPC members under the same conditions, we found that the flexural capacity of ASFRPC members increased by 72.4%–149.5%. Moreover, the flexural toughness, residual strength coefficient, and residual load of ASFRPC members were greatly improved. The bearing capacity and toughness of both SFRPC and ASFRPC members were reduced to a certain extent with the increase in the water–binder ratio. The increase in the fiber length and content effectively improved the bending mechanical properties of the SFRPC and ASFRPC members; in particular, the increase in the fiber length significantly improved the deformation capacity of the members.

This paper researches the ecological environment from the perspective of system science and reveals that the ecological environment has the properties of unity and dynamic. Then the ecological environment is probed spiritually and materially, that is, to realize an all-out and multi-leveled interpretation of the ecological environment, the spiritual ecology is studied from the perspective of ecological esthetics, ecological society and ecological culture and the material ecology is studied from the perspective of ecological city, ecological architecture and ecological materials.