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Polymer concrete may be used for new construction or repairing of old concrete. The adhesive properties of polymer concrete allow repair of both polymer and conventional cement-based concretes. Disadvantages of Polymer Concrete Polymer concrete is very expensive than a conventional concrete. Polymer concrete needs high skill and precise work while mixing. Improper proportioning of two-component materials can occur; thus, the proper mix design is required. Polymer concrete is prepared by mixing a polymeric resin with aggregate mixture. Microfillers are also employed sometimes to fill the voids contained in the aggregate mixture. ], and gravel are some of the materials reported by various authors. SikaTop®-144 is a polymer-modified, two-component, cementitious coating. Designed for use on concrete, mortar, and masonry substrates. Easily applied by brush, roller, or spray equipment. This fine-textured, abrasion resistant coating is used for protection against deicing salts and for d...

FOR DESIGN MANUAL GO TO THE LINK: %20bdetm_13_2_steel_superstructure_details_1986_10

  Bridge Expansion Joints Bridge expansion joints (or movement joints) are designed to enable continuous traffic between two structures and are necessary to accommodate structural movements due to creep and shrinkage effects, temperature variations or deformations under live load. They are suitable for reinforced concrete, pre-stressed concrete, composite and steel structures, and particularly for bridge decks. Bridge expansion joints are also designed to allow sufficient vertical movement so that bearings can be replaced without needing to disassemble the expansion joint. Freyssinet has been installing expansion joints to structures all over the world for more than 40 years. As a bridge expansion joint specialist, Freyssinet is able to offer a full range of products, an inspection and design service to establish the correct type of joint for your structure and provide expert installation. Find out more about the purpose and importance of correct selection here.

Product name: h beam production line col: blue Web height: 300-1500mm Web thickness: 3-12mm Welding speed: 0.3-1.9m/min Flange width: 150-500mm Flange thickness: 5-20mm Main machine power: 13.4KW Va=$ 150,000.00 Vr= $22,500.00 Ve=10, 400 hrs Ha=200 hrs/semana Q=0.9 mantenimiento Ka=.08 ocupacion de piso electricidad=13.4 kw/hr i=2% inversion s=.01 seguros                                                                      DEPRECIACION:   Va-Vr/Ve.............. $ 12.26 $/HR                                                         INVERSION: (Va+Vr)*I/2Ha............... $  8.62 $/HR              ...

 

 

                                                                     NELSON STUD GUN

 PRECIO DE ADQUISICION ................................................................$18,000.00 VIDA EN HORAS ..........................................................................................8000 VALOR DE RESCATE ..................................................................................15% DEPRECIACION ...............................................................................................................Va-Vr/Ve 1.13 $/HR INVERSION......................................................................................................0.62 $/HR Va+Vr/2Ha Ha= NUMBER OF HORAS POR ANO..........................................................  2000 SEGURO  .................................................................................................. 0.052 $/HR ALMACENAJE...................................................................................... 0.0226 $/HR MANTENIMIENTO ....................................

  FFCC

  Cold cambering is the most common method used in fabrication shops to induce camber in a steel member, as it is a simpler and more cost-effective method than heat cambering.  This method uses a mechanically induced force to achieve the desired curvature. The member (I – beam) is placed in a device called a cambering machine that is often built by the fabricator but is also commercially available. The cambering machine consists of two restrained pivots, one near each end of the beam and one or two hydraulic jacks near the middle of the beam.  The jacks apply a force to induce camber into the member. After placing the member at the restrained end pivots, the rams of the hydraulic jack or jacks are advanced to apply stress into the member past it’s yield point to produce a permanent deflection. When the rams are retracted, the residual deformation remains.  The beam may need to be moved back and forth to actuate the jacking forces at different locations along the leng...

                                                              COURTESY OF STEELGIRDERSINDIA                                              Va= $ 15,500.00                   Vr=0.15*15500                   Ve=10000 hrs                   Ha=2000 hrs                   VALOR DE ADQUISICION            Va-Vr/Ve...................................... $ 1.32 $/HR                    INVERSION                        ...

                                                       COURTESY OF STEELGIRDERSINDIA                                                     COURTESY OF STEELGIRDERSINDIA https://www.bing.com/videos/search?q=price+for+an+assembly+machine+for+steel+beams&qpvt=price+for+an+assembly+machine+for+steel+beams&view=detail&mid=864A2F1E556C9C6716DB864A2F1E556C9C6716DB&&FORM=VRDGAR https://www.bing.com/videos/search? chris@wxzhouxlanghi.com https://www.youtube.com/watch?v=B4xjrORSsKg

  COURTESY OF STEELGIRDERSINDIA COURTESY OF STEELGIRDERSINDIA