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    Controlled permeable formwork (CPF) liner is an innovative material used to improve the quality of the concrete in the cover region, by allowing the air bubbles and mix-water to drain out from the ...

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  • Permeable Liner | Concrete | Textiles

    2018-9-21 · The ability of the permeable formwork to reduce the number of bug holes is obvious from inspection and has been clearly documented. Marosszeky et al. (1993) measured the relative areas of bug holes and smooth surfaces on blocks of concrete cast with and without permeable formwork.

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    construction works comprising a structure , such as a dam , bridge , road , railway , runway, utilities, pipeline , or sewerage system , or the result of operations such as dredging, earthwork , geotechnical processes , but excluding a building and its associated site works

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    2020-8-17 · OSHA Instruction TED 01-00-015. The OSHA Technical Manual (OTM) provides technical information about workplace hazards and controls to OSHA’s Compliance Safety and Health Officers (CSHOs). This information supports OSHA’s enforcement and outreach activities to assure safe and healthful working conditions for working men and women.

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  • (PDF) Planning & Mitigation Methods to Reduce the

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    13 Curing 13.1 Introduction 212 13.2 Curing concrete as a function of its w/c ratio 213 13.3 Curing concrete to avoid plastic shrinkage 216 13.4 Curing concrete to avoid autogenous shrinkage 218 13.5 Curing concrete to mitigate drying shrinkage 221 13.6 Implementing concrete curing in the field 222 13.7 Conclusion 223 References 223

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    موارد یافت شده: 14582 1 - Dynamic Pricing and Relocation of a Mixed Car-Sharing Flee (چکیده) 2 - Citrus fruit grading based on the volume and mass estimation from their projected areas using ANFIS and GPR models (چکیده) 3 - A novel method for estimation of stress concentration factor of central cutouts located in orthotropic plate (چکیده) 4 - In vivo antibacterial ...

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    A simple catalytic device that is easily installed into vehicles, small engines, and industrial exhaust stacks is provided. The simple catalytic device has a ridged and stable backbone structure that withstands expected mechanical forces. In one example, the backbone is a highly gas permeable mesh or screen. A fibrous material is disposed on the backbone, with a catalytic material coating ...

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  • US7682578B2 - Device for catalytically reducing

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  • Sustainability of Concrete - SILO.PUB

    13 Curing 13.1 Introduction 212 13.2 Curing concrete as a function of its w/c ratio 213 13.3 Curing concrete to avoid plastic shrinkage 216 13.4 Curing concrete to avoid autogenous shrinkage 218 13.5 Curing concrete to mitigate drying shrinkage 221 13.6 Implementing concrete curing in the field 222 13.7 Conclusion 223 References 223

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  • Catalytic exhaust filter device - Geo2 Technologies, Inc

    This construction enables gas to move from a respective inlet channel 167, 168 to an adjacent outlet channel 170, 171 for substantially the entire length of the fibrous block 155. FIG. 5E shows that laminar flow is established inside of channels 167 , 168 , 170 , 171 to facilitate bulk diffusion, while wall flow or pore diffusion is established ...

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  • Substantially fibrous refractory device for cleaning a ...

    2005-12-30 · The semi-permeable layer 37′ is typically vitreous, such as a glass matrix layer. The semi-permeable layer 37 ′ typically forms a fiber reinforced glass ceramic matrix composite that retards the penetration of gases into the insulation layer 14 ′, and hence reduces heat transfer to the outside surface 35 ′ and thus prevents excessive ...

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  • Dictionary of Architectural and Building Technology ...

    CAFM Computer-aided facility management. caisson A watertight chamber used for construction in waterlogged ground, or below water. caisson pile A cast-in-place concrete pile, made by driving a tube, excavating it, and filling the hole with concrete. calcareous Containing calcium, or more commonly calcium carbonate (CaCO3). calcimine Same as ...

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  • Assessment Of The Technical, Environmental,

    PERCENT OF UNDERGROUND TANKS BY TYPE OF WASTE STORED AND CONSTRUCTION MATERIAL OF TANK Percent Used By Construction Material of Tanks* Waste Stored Percent of Tanks* Carbon Steel Stai n less Steel Concrete Fiber- glass Other Ignitable 46 34 7 2 3 0 Corrosive 32 17 2 6.5 6.5 1 Reactive 11 1 2 4 3.5 •5 E.P. Toxi c 24 5 0 7 7 5 Toxic 28 14 3 6 5 ...

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    Reduce of Energy Gap of Cuo Nano Structure Film by Ag Doping 1 Kameran Yasseen Qader, 2 Rusul A. Ghazi, 3 Ali Mohammed Jabbar, 4 Khalid Haneen Abass, 5 Sami Salman Chiad 1,5 Department of Physics, College of Education, Mustansiriyah University, Iraq.

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    Reduce of Energy Gap of Cuo Nano Structure Film by Ag Doping 1 Kameran Yasseen Qader, 2 Rusul A. Ghazi, 3 Ali Mohammed Jabbar, 4 Khalid Haneen Abass, 5 Sami Salman Chiad 1,5 Department of Physics, College of Education, Mustansiriyah University, Iraq.

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    Approach Spans, Forth Railway Bridge: Overall, the steel lattice girders act as beams in bending, carrying the loads from the trains, and their own weight, to the stone piers, which act as columns. The bending of the girders is resisted by tension and compression in the horizontal chords; the shear forces by the diagonals of the lattice. 1 2

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    An ethnobotanical, pharmacological and phytochemical review (چکیده) 939 - Development of the delta-normal stress combining CE-QUAL-W2 as a novel method for spatio-temporal monitoring of water quality in Karkheh Dam Reservoir (چکیده) 940 - A new fractional-order developed type-2 fuzzy control for a class of nonlinear systems ...

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