This research is devoted to investigate relationship between both Ultrasonic Pulse Velocity and Rebound Number (Hammer Test) with cube compressive strength also study the effect of steel reinforcement on these relationships. A was carried out 32 scale model reinforced concrete elements. Non destructive testing campaign (mainly ultrasonic rebound hammer tests) made same About 72 cubes (15 X 15 X...

Abstract The use of three artificial neural network (ANN)-based models for the prediction unconfined compressive strength (UCS) granite using non-destructive test indicators, namely pulse velocity, Schmidt hammer rebound number, and effective porosity, has been investigated in this study. For purpose, a sum 274 datasets was compiled used to train validate ANN including constructed Levenberg–Mar...

In Arteara (Canary Island), a Holocene rock avalanche comprises accumulation of large reddish blocks which cover the Fataga ravine. This course, is entrenched into Phonolitic Formation, an alternating sequence lava flows and ignimbrites. The defines elongated deposit variable thickness. A low friction angle was deduced, related to easily weathered bedrock favorable rolling blocks. movement woul...

The application of neuro-fuzzy inference system to predict the compressive strengths of concrete is presented in this study. To investigate the influence of various parameters which affect the compressive strength, 2000 data samples were used for the analysis. Adaptive neuro-fuzzy inference system (ANFIS) was introduced for training and testing the data obtained from technical literatures. To r...

This research aims at investigating the deterioration of limestone rocks due to influences thermal quenching and salt crystallization weathering tests predicting their long-term durability. Therefore, six types limestones were quarried from different provinces Egypt subjected 50 cycles 25 processes. The porosity, Schmidt hammer rebound hardness, ultrasound pulse velocity, Brazilian tensile stre...

The use of ultra-high performance concretes (UHPC) in the modern construction industry is increasingly widespread. UHPCs are a type concrete that provides advantages solving many engineering problems. have superior properties compared to conventional terms workability, self-settling, as well high strength and durability. However, although advantages, achieving desired workability one biggest ch...

This paper presents the study of a two-hundred-year-old, demolded solid clay brick using rebound hammer test for estimation compressive strength. During test, location and face type influence on values are monitored recorded. In addition, calculation average value has been modified to encounter types. Furthermore, estimated strength is compared with normalized mean check accuracy if it within c...