Highly permeable materials provide drainage and noise absorption properties that are useful in pavement top-layers. In such porous concretes, the voids reduce the mechanical integrity, which may have to be compensated by the incorporation of non-conventional components, such as polymers. A basic property needed for the design of pavements is the fatigue behavior of the material, which has not b...

The interest in the use of resistant acoustic materials has put further attention on porous concrete building industry. This work investigates properties four different mix designs obtained with two types aggregates, that is, normal weight and lightweight aggregates. assessment sound-absorbing performances been conducted small-scale reverberation room (SSRR) at Politecnico di Torino (Italy), ag...

Abstract: Porous concrete for low-impact development has long been studied the improvement of urban stormwater management. However, porous made using Recycled Concrete Aggregate (RCA) is still lacking, particularly concerning its strength and infiltration rates. Therefore, this paper aimed to design RCA with optimum rate without compromising strength. To fulfill aim, a laboratory study evaluati...

In this work, we present a system of equations which describes non-isothermal flow in a bidispersive porous medium under conditions of local thermal non-equilibrium. The porous medium consists of macro pores, and in the solid skeleton are cracks or fissures which give rise to micro pores. The temperatures in the solid skeleton and in the fluids in the macro and micro pores are all allowed to be...

To prevent sympathetic detonation in a high performance magazine, barriers between stacks of munitions absorb donor fragments. Acceptor munitions may still initiate on impact of barrier debris or on being thrown into the walls of the magazine itself. These shocks can be reduced to a safe level by increasing the barrier's mass which reduces its velocity and the imparted shock. In addition a poro...