Wei-Chien Wang's research while affiliated with National Central University and other places

... Additionally, any damage or structural failures due to insufficient curing may require repairs or even replacement, which can further increase material and labor costs. To prevent curing-related issues, it is crucial to implement appropriate coldweather concreting practices, such as maintaining optimal temperature conditions, using admixtures to accelerate the curing rate [66], and closely monitoring the concrete's curing progress. By taking these measures, contractors can minimize the impact of reduced curing rates on construction time, safety, durability, and costs, while ensuring the quality and performance of concrete structures in cold and freezing temperatures. ...

... Wang et al. [13] studied the mechanical properties of CO 2 -curing Portland cement concrete. The authors found that CO 2 was active in fresh Portland cement concrete. ...

... Lee et al. [12] studied the mechanical properties of ordinary and high-strength pervious concrete using steel or glass fibers. The authors concluded that the high-strength pervious concrete specimen with 2% steel fiber content had a higher compressive strength of 52.8 MPa at 28 days. ...

... We may therefore conclude from the retrieved p-values that variations in the pH of the initial mixing water caused noticeably varied strength gain results, whereby we may also draw the conclusion that variations in the pH of the initial mixing water can significantly affect the concrete strength gain during the curing process. Similar observations are made in the literature; according to the study conducted by Wei et al. [47], which focused on the low-pH self-compacting concrete's engineering characteristics for concrete plugs; it was observed that the compressive strength of mixture reached up to 61.66 MPa when the pH value was 10.6 after 90 days. The phenomenon highlights the impact of pH on a concrete's overall strength increase over time. ...

... The ex situ leaching method is known for its simplicity and accuracy in all pH measurement methods [29][30][31] and is the most widely used method for the pH measurement of concrete. In this paper, the alkalinity of concrete pore solution was analyzed with the ex situ leaching method. ...

... The relationship between and Vp for slag blended mortars is investigated using the experimental results from the current study combined with results from other tests on slag blended mortars reported in the literature [38][39][40][41]. Details from these other studies are summarised in Table 6. ...

... The lime-based compounds, such as carbonate are the major factor that causing the efflorescence. The calcium hydroxide (Ca(OH) 2 ) from the water are slowly dissolved and reacted with the carbon dioxide in the surrounding air to produce the calcium carbonate (CaCO 3 ) [14]. The efflorescence test was conducted in accordance with ASTM C67-02c, by examining the existence of white precipitate on the surface of bricks. ...

... These parameters are known to be governed by several factors namely: cement ratio, aggregate type, density, moisture content, and porosity which are all affected when concrete elements are exposed to heat. Consequently, thermal conductivity measurements can constitute an effective tool when assessing thermal damage [42,43]. ...

... LWAs demand large amounts of water during mixing and, therefore, absorb large quantities of water due to their porous nature. The water surplus contained in the pore system of the concrete promotes the FT degradation and, as the cement paste is susceptible to the water content, expansion is evident as a result of the ettringite and other hydrates [54]. However, until the 75th cycle, an insignificant length change (<0.1%) was reported in all concrete mixtures, except in RPePu. ...

... Emphasizing on [22], the layer configuration required the introduction of a unification procedure for the complete analysis of the four contrasting material setups to take place. In the same vein, for more on the elastic wave propagation in other layered and composite media, see [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42] and the references therein. ...