Similar results were observed for splitting tensile strength and flexural strength as illustrated in Table 5. For 10% and 20% replacement of SCBA, the increase in tensile strength as compared to control concrete was 25.3% and 15.8%, respectively. This shows that the maximum tensile strength was attained at 10% addition of SCBA as …
Abstract. Using soft computing methods could be of great interest in predicting the compressive strength of Ultra-High-Performance Fibre Reinforced Concrete (UHPFRC). Therefore, this study developed four soft computing techniques. The models are the Linear- relationship (LR), pure quadratic, M5P-tree (M5P), and artificial neural …
maximum tensile strength of concrete is obtain at 60% and 70% replacement of natural sand with Crushed sand. The concrete ... To access existing concrete produce using artificial sand. To draw conclusion and give recommendation based on research finding and indicate areas for further study
Regarding the compressive strength of concrete using steel fiber, Li et al. [14] proposed ML methods, such as individual and ensemble models, that were taken into consideration to estimate the 28 ...
While it is widely accepted that tensile strength is related to compressive strength, increasing compressive strength by using manufactured sand has been found to improve the tensile strength of MSC [20], but the conversion from compressive strength …
Tensile strength of concrete mixes made with and without manufactured sand was determined at 7 and 28 days. The test results are given in Table 4 and Fig. 3. The strength of manufactured sand concrete with respect to their tensile strength at the age of 7 and 28 days was 92 and 94 % of M20 grade when compared to same grade of conventional …
The utilization of fiber in concrete has been rising steadily in the past few years in an effect of overcoming the toughness limitations and inherent tensile strength of plain concrete (Ravinder, 2016). Concrete is a product of high compressive strength and low tensile strength (Kim et al., 2010).
The following conclusions were obtained. The ultimate tensile strain of SECCs was 0.38–2.40%, the ultimate tensile stress of SECCs was 2.56–4.58 MPa, and the compressive strength of SECCs was 37.81–64.66 MPa. The content of fly ash and sea sand had a highly significant positive effect on ultimate tensile strain.
Hence a research was carried out on concrete mix with artificial M sand for partial fragment of river sand and GFRP bars replacing conventional steel reinforcement. ... Concrete using M sand attains higher strength than concrete using river sand: Cube with M sand: M40: 54.22: ... The tensile strength of GFRP bar was 1.25 times higher …
Summary of short- and long-term tensile properties of FSS-ECC and GPA-ECC: (a) tensile strength, (b) tensile strain capacity, and (c) strain energy density. From the stress-strain curves, the tensile strength of GPA-ECC was found to be lower than that of FSS-ECC probably because the use of large GPA size (2.36–4.75 mm) negatively …
The concrete attained splitting tensile strength in the range of 123% - 125% at 28days when compared to the control at 28days.Wakchaure et al. (2012), conducted split tensile test on plain cement concrete with natural sand as fine aggregate and the other with artificial sand. They discovered that the tensile strength difference between the two
the usage (%) of SD in concrete without compromising the strength of concrete fiber reinforcement can be a good solution. Fiber reinforced concrete (FRC) is becoming popular due to its promising performance in structural reliability (Verma, 2016). Fiber improves flexural strength, splitting tensile strength, freeze-thaw resis-
The workability of the two is good, and the slump of both is between 150 and 250. Concrete cubic specimens with the length of 100 mm were made up and cured for 28 days under standard conditions. Then the average density and compressive strength of three specimens were measured shown in Table 1. Table 1.
The used data set was 151, 76, and 44 test results for compressive strength, flexural strength, and direct tensile stress-strain curve respectively as shown in Table 1.The collected dataset was mentioned in Table 1 was divided into two parts, the first part was randomly divided into three sets 70%, 15%, and 15% for model training (model learning), …
In this regard, seven input variables affecting the mechanical properties of concrete were identified and the compressive strength (CS), splitting tensile strength (TS), modulus of elasticity (ME), and flexural strength (FS) were modeled using the artificial neural network (ANN) assisted by the multi-objective multi-verse optimizer …
For the aim of experimentation concrete mixes are designed for M20, M25, M30, M35 and M40 grades by zero to 100 percent replacement with increment of twenty attempt to in …
The dataset used in this study comprises 754 uniaxial compressive strength and splitting tensile strength data for manufactured sand concrete (MSC). The data points are assembled from 41 experimental studies [[43], [44], [45]]. The mixture of MSC consists of Grade 42.5 ordinary silicate cement, which is mixed with supplementary cementitious ...
It is a method through which a fracture occurs due to applied stress attempting to locate weaker paths. The average tensile strength was calculated using three 100 * 200 mm cylindrical samples. In this study, the tensile strength of the concrete with artificial LWA is equivalent to that of sound concrete, as shown in Table 2 and …
The mechanical properties of lightweight aggregate concrete developed with the use of bottom ash aggregate (LWAC-BA) as a partial or full replacement of lightweight aggregate differ from those of general lightweight concrete made using natural fine and/or coarse aggregates. The mechanical properties of LWAC-BA are difficult to predict using …
The compressive, flexural and spilt tensile tests were conducted to study the strength of concrete using artificial sand and the results are compared with that of …
For the first time, geopolymer aggregates and cement-bonded aggregates were used as fine aggregates to produce artificial aggregate ECC. The mechanical properties of artificial aggregate ECC, including compressive strength, tensile behavior, and crack patterns were investigated and compared with those of high-strength ECC …
Test results indicated that crushed stone dust waste can be used effectively to replace natural sand in concrete. Concrete made with this replacement can attain the same …
However, the properties of concrete were badly affected when more than 50% of the natural aggregates were replaced. Hamad and Dawi [30] prepared crushed concrete from normal strength concrete and high strength concrete and the average reduction in the mechanical properties of concrete containing RCA was found to be 10%.
Concrete has strong compressive strength but is weak in tensile strength [90]. It was observed that tensile strength of concrete is nearly 10–20% of its compressive strength [91]. In the process of determining the effectiveness of concrete, the tensile strength is not taken into account according to the design code. MS EN 1992–1–1:2010 …
The cement' compressive strength and tensile strength at 28 days ranged in 35.5–63.4 MPa and 6.9–10.8 MPa, respectively. The maximum grain size of crushed …
The results showed that using IP as a partial replacement enhances both static and dynamic properties of concrete; the enhancement kept increasing up to 20% …
Mix proportioning. There were two types of concrete mixes created in this experimental work (Table 2).The control concrete mix (M0) containing cement (400 kg/m 3), stone (1200 kg/m 3), sand (600 kg/m 3) and water (200 kg/m 3).The rest mixes were prepared with GWA of 10%, 20%, and 30% as a partial substitution of sand and with the …
Test results showed that there is only a marginal decrease in compressive strength, splitting tensile strength and flexural strength for M20 concrete mixes on ages of 7 and …
The repository consists of 1133 concrete samples. To train the machine learning (ML) models for predicting the concrete tensile strength, a dataset developed by Zhao et al. [28] composed of 714 samples was used. It is worth noting that the tensile dataset consists of data that has a range with lower bound values.
The stability of reinforced concrete structures mainly depends on the mechanical properties of concrete, i.e., its compressive strength f c and tensile strength f t. Different kinds of inexpensive cement replacement materials (CRM) can be used to form hybrid concrete (HC) with enhanced mechanical and other properties.