Additional Criteria for Playground Impact Attenuating Sand

Falls within children’s playgrounds result in long bone and serious injuries. To lower the likelihood severity of injury, impact attenuating surfaces (IAS) are installed area (fall zone). There three primary IAS materials used, namely: granulated rubber products, wood fibre sand. is a deficiency with existing test methods that they do not take account sand degradation over time. When children use playground, can occur when produces fines smaller particles low sphericity angular which fill voids between particles. These tend to bind its performance. This paper proposes an additional eliminate sands degrade above established threshold rate after installation due normal usage. properties fifteen were tested including particle shape, distribution, percentage degradation. accelerated ageing method applicable only or products. The best sourced from quarries located on rivers had eroded volcanic outcrops. shown least little no fines, their shape was rounded well-rounded. most reliable source for good quality these specific bends. mined at locations consistently tight size distribution.