Reducing Railway Noise with Porous Sound-Absorbing Concrete Slabs

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/amse/volume-2014/206549/figures/206549.fig.001a.svgz" name="206549.fig.001a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Expanded perlite</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/amse/volume-2014/206549/figures/206549.fig.001b.svgz" name="206549.fig.001b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Slag</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/amse/volume-2014/206549/figures/206549.fig.001c.svgz" name="206549.fig.001c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Clay ceramsite</td></tr></table>

Advances in Materials Science and Engineering

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Figure 1

Figure 1: Reducing Railway Noise with Porous Sound-Absorbing Concrete Slabs 