Ultra Concrete Barrier rFOILTM
ثبت نشده
چکیده
Product & Technology Reviews (PTR) are developed for Northwest electric utilities. EnergyIdeas Clearinghouse engineers review published literature for objective, independent test results. No primary testing was conducted by the reviewer for the preparation of this document. PTR factsheets describe the technology, discuss available data, and suggest additional testing needed to verify energy saving claims. For more information: www.EnergyIdeas.org/ptr Image provided by Covertech Fabricating, Inc. A single layer of highly reflective aluminum foil sandwiched between two layers of polyethylene bubbles for use as a radiant barrier for concrete slab foundations.
منابع مشابه
Effect of Reinforcement Type on the Tension Stiffening Model of Ultra-High Performance Concrete (UHPC)
Ultra-high performance concrete (UHPC) is a developing concrete and today is increasing to interest using it in structures due to its advantages such as high-compressive strength, modulus of elasticity, highly durability and low-permeability. Therefore, it is necessary to provide models for prediction of nonlinear behavior of this material. This study is aimed to investigate the tension-stiffen...
متن کاملExperimental Study on TGA, XRD and SEM Analysis of Concrete with Ultra-fine Slag (TECHNICAL NOTE)
The performances of cementitious materials as well as the efficiency of construction are adversely affected at high temperatures. Previous studies have already demonstrated that ultra-fine (alccofine) material accelerates the hydration of cement particles and subsequently improves the mechanical and durability properties of the concrete at normal temperature. Moreover, at higher temperatures th...
متن کاملUltra High Performance Self Compacting Concrete
Experiences in the development of Ultra High Performance Concrete found a very high flowability in concrete with low water powder ratio. Because of the high viscosity of the cement paste, compaction was necessary. To improve the compaction characteristics of the concrete the idea of adding coarse aggregate was developed. The first tests showed a good workability of the fresh concrete and a good...
متن کاملF4-H: Optimal Design and Use of Advanced Structural Materials to Mitigate Explosive and Impact Threats
The initial focus of this mitigation effort was to conduct studies that aimed to understand the response of conventional and novel materials and structures to shock loads (internal or external) with or without a high temperature environment. The ultimate goal was the development of materials and structures that can mitigate blast conditions. The major focus is an investigation of the effectiven...
متن کاملFibre - reinforced , self - compacting concrete flow modelled by smooth particle hydrodynamics
A Lagrangian particle-based method, the smooth particle hydrodynamics, is used to model the flow of ultra-highperformance, self-compacting concretes containing short steel fibres which behave like a non-Newtonian fluid described by a Bingham-type constitutive model. An incompressible smooth particle hydrodynamics method is used to simulate the flow after the kink in the shear stress against the...
متن کامل