1. Analysis of Tensile Strength of Pervious Concrete with and without Fibre Reinforcing
CHERRY CHADHA
1
Abstract
The purpose and focus of this project are to research tensile strength of pervious
concrete with and without adding fibre reinforcing and, to comment on its feasibility in
the Auckland region. Pervious concrete also, referred as porous concrete or no- fines
concrete achieves its porosity through an interconnected network of voids, and at
present is used primarily in pavement applications.
Urbanization has led to rapid growth of impermeable surfaces, these, increase the
need of large scale storm water management which has disturbed the ratios of
evapotranspiration, runoff, shallow penetration and deep penetration of storm water.
However, there are continuous doubts about the performance of pervious concrete in
terms of its strength and durability, and the attempts to meet these characteristics
generally lead to reductions in permeability. Analysis of one such potential parking lot
of size of a football field made of Pervious pavement indicated that, run-off from a
reasonably urbanised pervious pavement over a sandy silt subgrade would be the
same as from grassy pasturage in that area (Leming, Malcom, & Tennis, 2007). This
unveils the potential of Pervious concrete as an inbuilt stormwater management
system.
There are continuous developments of Pervious concrete as a pavement material
which further ensures, its potential .The purpose of this project is to study the existing
findings in New Zealand and internationally and, to test the tensile strength of various
samples of Pervious concrete with and without fibre reinforcement and other available
mixes. Testing for durability is beyond the extent of the proposed report.
By studying and reviewing the literature available and after performing a series of lab
tests, this report will enhance the understanding of pervious concrete properties within
the New Zealand environment. Along with the testing, views and suggestions of people
from the industry are also a part of this report. This research project take an initial step
towards providing some valuable information for a sustainable and environmental
friendly future for New Zealand.
References
Leming, M. L., Malcom, H. R., & Tennis, P. D. (2007). Hydrological Design of Pervious
Concrete. Maryland, U.S.A: Portland Cement Association.
ACI Committee 522. (2006). Pervious Concrete ACI 522R-06. U.S. of Michigan:
American Concrete Institute.