Sentence examples for concrete surface preparation from inspiring English sources

Orton (2007) observed that negative effects of poor concrete surface preparation were reduced when 90° anchor spikes were used to anchor FRP for flexural strengthening.

Based on the results, an improved capacity model that accounts for concrete surface preparation is proposed and validated against an extensive database of published results.

In order to improve the bond quality between newly cast concrete and old concrete substrate, a novel concrete surface preparation technique of scattering gravels into the surface of self-compacting concrete is put forward to replace the existing concrete surface preparation methods.

The parameters examined include: (a) the bond length (from 50 mm to 450 mm); (b) the number of TRM layers (from one to four); (c) the concrete surface preparation (grinding versus sandblasting); (d) the concrete compressive strength (15 MPa or 30 MPa); (e) the textile coating; and (f) the anchorage through wrapping with TRM jackets.

Specific installation recommendations presented concern environmental conditions, equipment, concrete repair, surface preparation, resin mixing, application of the FRP system, use of multiple plies and splices, and curing.

Based on their testing, Chajes et al. (1996) drew several conclusions about the bond and force transfer between composites and concrete: (1) Surface preparation greatly influences the ultimate bond strength.

The effects of surface preparation, overall concrete strength, and adhesive type were all tested using a constant bond length.

This chapter describes various tools and methods that are used for surface preparation of concrete and steel before grouting.

An extensive research project has been undertaken to develop specifications and performance criteria for surface preparation of concrete substrates.

The results revealed that although the surface preparation of concrete before attaching the FRP sheets often does not prevent from the debonding, but it can delay debonding even slightly and, accordingly, increase carrying loads of beams up to 12%.

A field test was developed to evaluate the optimum moisture conditioning of the substrate concrete prior to application of repair material; this has been calibrated and compared with destructive and non-destructive on three types of concrete and two types of surface preparation.