TY - EJOU
AU - Wang, Xiaofu
AU - Zhang, Xiong
AU - He, Yan
AU - Lian, Chunming
TI - Component Optimization and Seepage Simulation Method of Resin Based Permeable Brick
T2 - Journal of Renewable Materials
PY - 2020
VL - 8
IS - 8
SN - 2164-6341
AB - In order to solve the problem of urban surface runoff, it is necessary to
study permeable brick deeply. Tensile test and DMA test were used to study the
binder material of permeable brick, and a material with the best mechanical properties was selected as the binder of resin based permeable brick; The permeable
brick with single gradation and continuous gradation and porosity of 0.1–0.5 gradient is constructed by 3D modeling method. The particle composition and the
seepage simulation results of permeable brick under different design parameters
were analyzed; A resin-based permeable brick with micro-pores was prepared
using the selected binder and desert sand with high roundness as aggregate,
and compared with the simulation, its water permeability coefficient is 3.25 ×
10-2 cm/s and the compressive strength is 36.19 MPa. In the seepage simulation
of permeable brick, it is known that with the increase of gradation width “value i”,
the water permeability coefficient increases. Therefore, in order to control the
number of aggregate particles and obtain better seepage performance, the wide
gradation of i ≥ 4 and the design porosity of 0.3–0.4 should be considered. This
study provides a research basis and a simulation method for the component optimization of resin based permeable brick.
KW - Permeable brick; epoxy resin; aggregate; sponge city
DO - 10.32604/jrm.2020.011327