Be careful when using the concrete grinder.
However, in the case of using the sequential concrete placement method (or rotation method), the vertical cracks along the UHPFRC tube joints (or joint-cracks) were critical to the overall performance.
The study contained a thorough visual inspection and recording of cracks, estimation of the crack depth using ultrasonic pulse velocity measurements, investigation for voids between the concrete floor and the underlying aggregate layer using the Impulse-Response method, concrete floor thickness estimation using the Impact-Echo method and concrete quality estimation using cores cutting.
In particular, the relative permittivity of bare concrete decks measured using the surface reflection method at the concrete surface, can be strongly affected by the relative humidity of the air, which may pose difficulties in accurately interpreting the concrete conditions.
This study is investigated with the prediction of the compressive strength of early-age bisphenol F-type epoxy resin concrete when using the maturity method.
Promising results have been obtained from flexural strengthening of concrete elements using the grooving method in its special form of externally bonded reinforcement in grooves (EBRIG) to postpone CFRP debonding and load carrying capacity enhancement.
It is built by a periodic homogenisation approach using the averaging method and it couples concrete damage and periodic debonding between steel rebar and surrounding concrete.
According to the calculated emission quantities, concretes designed using the novel method show better environmental performance than their counterparts in all of the selected impact categories.
The concrete properties using the conventional RCA method are mainly affected by the volume of the residual mortar (RM) attached to the RCA.
For the evaluation, the condition of the relative permittivity of the concrete, assessed using the amplitude reflection method, was compared with the results of visual inspection, and the depth-corrected attenuation of radar waves reflected from the tops of rebar.
