The results exhibited improvement in fresh and hardened properties of modified concrete due to the combined addition of RPF and SBR latex namely improved cracking resistance, flexure resistance and reduced rate of chemical and water ingress into the specimens.
Thus, in this study, the behavior of various UHPFRC structures under different loading conditions, such as flexure, shear, torsion, and high-rate loads (impacts and blasts), were synthetically reviewed.
The failure mode of beams with large aspect ratios tends to change from flexure to shear with increasing loading rate.
When the colonoscope tip was in the transverse colon, hepatic flexure and ascending colon, ETM success rates were less (61.1%, 52.0%, and 41.7% respectively) compared to the left colon success rates (rectum 83.3%, sigmoid colon 84.0%, descending colon 100%, and splenic flexure 85.7%).
Of particular interest, when the colonoscope tip was in the transverse colon, hepatic flexure, and ascending colon, the success rates of ETM were less than when in the left colon.
Since the structural behaviors of UHPFRC under flexure, shear, and torsion, and when subjected to high-rate loadings, such as impacts and blasts, are highly sensitive to numerous factors, i.e., structural shape, loading condition, strain-rate, casting method, reinforcement ratio, etc., it is necessary to synthetically review the scattered studies.
The rate of increase of the CMOD during the flexure test was controlled in two stages, at 0.05 mm/min for CMOD less than 0.1 mm and at 0.1 mm/min for CMOD greater than 0.1 mm.
For three-point-flexure tests, a uniaxial load was monotonically applied at the rate of 0.4 mm/min using the universal testing machine, conditions identical to those used for the compressive and four-point flexural tests.
Both the classic composite (rigid joint) and interface deformable (flexible joint) bi-layer beam models are used to calculate the compliance and energy release rate (ERR) of the proposed four-point asymmetric end-notched flexure (4-AENF) specimen.
Regarding oncological safety, this technique requires long-term follow-up observation to assess distant metastases and local recurrence rates; larger scale multicenter prospective studies on laparoscopic splenic flexure resection are therefore necessary.
In this study a geometric non-linear, two and three-dimensional finite element analysis of the end-notched flexure specimen, is performed to evaluate compliance and Mode-II strain energy release rate GII.
