The RILEM TC ASC-271 is developing a new laboratory test to assess the durability of porous building materials salt crystallisation. encompasses two phases: accumulation and damage propagation. This paper focuses on designing procedure for phase; this considered successful when salts crystallise at material's evaporative surface (common situation observed site) without occurrence damage. Two pr...

Cold environmental temperatures increase sympathetic nerve activity and blood pressure, and increase the risk of acute cardiovascular events in aged individuals. The acute risk of cardiovascular events increases with aortic pulse wave velocity as well as elevated central and peripheral pulse pressures. The aim of this study was to examine the independent influence of aortic pulse wave velocity ...

In this study, the mechanical properties of normal concrete (NC) and lightweight (LC) were measured upon exposure to high temperatures (20, 100, 200, 300, 500, 700 °C). Then, analysis was conducted predict residual modulus elasticity through ultrasonic pulse velocity. Crushed granite aggregate mixed as coarse for NC coal-ash LC. The effect water-to-binder (W/B) ratio (0.41, 0.33, 0.28) on (resi...

The present study aimed at assessing mechanical and durability characteristics of ground granulated blast furnace slag (GGBS)-based geopolymer composites 5%, 10%, 15%, 20%, 25%, 30% replacement proportion silica fume 12 molarity NaOH. Mechanical properties were assessed using compression tension tests, whereas evaluated ultrasonic pulse velocity test (UPV), acid test, rapid chloride permeabilit...

Various studies on the disposal or storage of wastes generated due to mining activities have been carried out until today. With developing technology, use alternative products instead aggregates in Composite and effect fiber addition were investigated. The most common these is bending strength tests beam sample. In this study, solid by operations used aggregate Composite. Beam samples poured wi...

Portland cement, which has been used as an unrivaled binder material since its development become one of major sources greenhouse gas emission. Compared with the conventional alkali-activated materials based on principle activating precursor by means alkali activators have comparable engineering properties and lower CO2 emission during production. In this study, effect modulus compressive stren...

Objective of the work: This study focused on investigations pozzolanic activity pumice under different curing temperatures and durations. 
 Materials Method: Pumice powder, standard sand slaked lime were used as materials in this study. Within scope study, only one mixture design was following TS 25. In total, 9 regimes such three heat cures at 55˚C, 75˚C, 90˚C durations 7, 14, 28 days for...

Background and objectives: Increased arterial stiffness is an accepted cardiovascular risk factor. Several studies have shown that regular exercise is associated with reduced arterial stiffness. However, the acute effect is not well known. The aim of this study was to evaluate the immediate impact of exercise on arterial stiffness measured by pulse wave velocity (PWV). Subjects and Methods: Dat...

A flat transducer was constructed, using a 9-microm-thick PVDF (polyvinylidene fluoride) film for generation and detection of high-frequency ultrasonic waves, and used for measurements of the phase velocity of longitudinal waves traveling along the thickness direction in a very thin material. The transducer has a useful wideband frequency characteristic extending from 10 MHz to over 150 MHz. Me...