Chou et al. [11] evaluated the techniques of multilayer perceptron neural networks (MLP), support vector machines (SVM), classification and regression trees, and linear regression to predict the compressive strength of high-performance concrete. The results showed the two best learning models were SVM, with deviations between 1.31 …
Concrete is the most commonly used construction material. The physical properties of concrete vary with the type of concrete, such as high and ultra-high-strength concrete, fibre-reinforced concrete, …
Get contact details & address of companies manufacturing and supplying Compression Testing Machine, Compressive Strength Testing Machine, CTM Machine across India. IndiaMART. Get Best Price. Shopping Sell. Help ... Compression test on concrete. Display Type: Analog. Capacity: 1000 Kn. Packaging Type: Wooden. Power: Hydraulic. …
certain value of compressive strength is achieved, the impact of further addition of cement would be very little [22]. 3.2 Waert The quantity of water in concrete also has a …
Compressive strength is a critical parameter in evaluating the mechanical performance of concrete, serving as a metric of its ability to withstand loads and stresses. Governed by standard C 39/C 39M, compressive strength tests are instrumental in assessing concrete's suitability for various construction applications. Test Methodology.
The range we offer includes Manually (Hand) Operated, Semi Automatic Compression Testing Equipment, Electrically Cum Manually Operated equipment and more. These strength testing equipment are extremely handy and are easy to use for testing cement, concrete and mortar cubes.
The compressive strength (CS) of SCC is a crucial mechanical parameter for both design and application purposes on construction sites as well as in ready-mixed concrete plants [].Other …
This approach enables accurate forecasting of concrete strength using the data obtained during the early stages of its development. By leveraging sophisticated machine learning techniques, the proposed strategy enhances the ability to estimate concrete compressive strength with precision" [7]. Kandiri A's research focused on …
Ultra-high-performance concrete (UHPC), with the highest resistance capacity against axial loads, is composed of various ingredients compared to other typical concretes, including fly ash and silica fume; eco-friendly materials also have an economical price. Such high-resistant constructional materials are seen as a suitable aggregate to …
Abstract. In Civil Engineering field, the compressive strength of concrete is a key parameter to design concrete structures and evaluate existing structures. …
The results shown that the two parameters, comprising compressive strength of concrete core and diameter and thickness of tube ratio were found to be …
Estimating Compressive Strength of Concrete Containing Rice Husk Ash Using Interpretable Machine Learning-based Models @article{Alyami2024EstimatingCS, title={Estimating Compressive Strength of Concrete Containing Rice Husk Ash Using Interpretable Machine Learning-based Models}, author={Mana Alyami and Roz Ud Din …
The Machine having working ranges from 0.5kN to 50kN for 50kN Capacity & 30kN to 3000kN for 3000kN capacity. The Machine is available in 50kN to 3000kN ranges. It has provision for automatically turning the pump on and off, controlling the set pace rate/displacement rate and switching the machine off under predetermined …
The study described in the paper focuses on the compressive strength of concrete columns that are reinforced with carbon fiber reinforced polymer (CFRP). The researchers aimed to identify the main parameters that affect the compressive strength of these confined columns. They used models to analyze and study the relationship …
Lexan safety doors for test viewing: ASTM C39 recommends testing machines be equipped with protective guards because high-strength concrete cylinders rupture more intensely than normal strength cylinders. Ultra-rigid, welded steel frames that meet or exceed industry requirements. Forney compression machines provide …
However, prediction of the 28-day compressive strength of concrete placed in the field on an actual construction site, termed field concrete herein, remains a challenge for the concrete industry due to variable environmental conditions and other uncertainties encountered during mixture proportioning, transport, placing, curing, and …
The concrete compressive strength f c and the modulus of elasticity E c were tested according to the Australian Standards AS 1012.9 (1999) and AS 1012.17 (1997), respectively, using a servo-hydraulic testing machine with a range of 3000 kN. In order to obtain more accurate experimental data, the concrete compressive strength and …
In the past five years, as summarized in Table 1, several research efforts have aimed to model the CS of geopolymer mortars and concrete using ML techniques.The best-developed ML models are bolded in this table. Researchers have primarily focused on investigating the utilization of fly ash and slag cement in geopolymers due to their …
The objective of this work is to determine the compressive strength of geopolymer concrete utilizing four distinct machine learning approaches. These techniques are known as gradient boosting machine (GBM), generalized linear model (GLM), extremely randomized trees (XRT), and deep learning (DL). Experimentation is performed to …
4.3. Sensitivity Analysis of the Compressive Strength of Concrete at High Temperatures. Sensitivity analysis was conducted in order to check the parameters that have a significant effect on the prediction of the compressive strength of concrete at high temperatures, as shown in Figure 5. Every variable used to run the model plays its role in ...
The cube will be preserved and curated well for almost 28 days to be tested by the Compression Testing Machine. Compressive Strength of Concrete Test. Apparatus Required. Steel Mould (150mm x 150mm x 150mm) Tamping rod ... But it requires a higher capacity CTM machine to calculate the values such as 300 tonnes, which does not …
Self-compacting concrete (SCC) has transformed civil engineering by efficiently filling formwork without mechanical consolidation, enhancing construction efficiency, and durability, and reducing labor needs. Accurate prediction of compressive strength (CS), a crucial mechanical property, is essential for optimal results. The …
This article discusses machine learning algorithms, such as Gaussian Progress Regression (GPR), Support Vector Machine Regression (SVMR), Ensemble Learning (EL), and optimized GPR, …
In this study, the aim is to investigate and predict the compressive strength of geopolymer concrete (GPC). The effects of curing method, curing time and concrete age on the compressive strength of GPC were evaluated experimentally. Four curing methods, namely room temperature (25°C), mobile dryer (50°C), heating cabinet type 1 …
3. Data Collection and Pre-Processing. To support comprehensive evaluation, production process factors influencing concrete CS are systematically …
365 Concrete are specialists in both Domestic and Commercial ready mix concrete with over 40 years of experience. We can supply concrete same day within 2 hours and you only pay for what you use. Find out which concrete strength mix you need for your project with the 365 Concrete Strength Guide. Quick and easy to follow concrete strength guide.
The manual concrete compression testing machine is composed of a machine body, oil pump, oil delivery valve, oil return valve, and force measuring instrument. 1. Machine Body The machine body is connected by the upper crossbeam, base (with oil cylinder), and four columns. The upper crossbeam is equipped with a worm gearbox, motor, nut, worm …
In the present study, the compressive strength of binary and ternary blended high-performance concrete mixtures was modeled using different machine learning tools, such as artificial neural network (ANN), gradient tree boosting (GTB), and multivariate adaptive regression splines (MARS). The compressive strength of binary …
Accurate bearing capacity assessment under load conditions is essential for the design of concrete-filled steel tube (CFST) columns. This paper presents an optimization-based machine learning ...
A critical aspect of cement hydration is the formation of calcium-silicate-hydrate (C-S-H) gel, which contributes significantly to the development of concrete …
The curing process and compressive strength testing procedure for CAC specimens were conducted in accordance with the relevant provisions specified in the standard [47]. Since the dimensions of the specimens are non-standard, the calculated compressive strength values should be multiplied by a dimension conversion factor of …
The current study uses gradient boosting (GBM) and light gradient boosting (LGBM) supervised machine learning (ML) approaches in the Python platform …
This research extensively used different progressive machine learning (ML) techniques to predict the compressive strength (CS) and tensile strain (TSt) of engineered cementitious composites (ECC) with 14 input variables and six algorithms. Specifically, random forest (RF), support vector machine, extreme gradient boosting (XGBoost), light …
The study to predict concrete compressive strength using fifteen machine learning models is based on a dataset consisting of material quantities in kg per meter …
To fill the research gap, this paper uses the GBRT algorithm, an ensemble learning method based on lifting, to predict the compressive strength of concrete materials. 1030 sets of concrete compressive test data were collected while …
The compressive strength of concrete is determined by testing concrete cubes or cylinders using the CTM machine. The CTM machine can also be used to test the compressive strength of other materials such as bricks, rocks, and metals. ... Load resolution ranges from 0.002kN to 0.2kN, varying with machine capacity. Available …
In this paper, to explore the shear capacity of stud shear connectors in steel-high strength concrete composite structures, 100 test data sets were gathered from previous studies, covering the compressive strength of concrete in the range of 61.19 MPa∼200 MPa to establish a reliable database.
Concrete Compression Machines feature a choice of controllers for automatic or standard operation and frames with capacities from 250 to 500Mlbf (1,112 to 2,224kN). Each series offers models that can be configured to perform a variety of tests on different sample types. Gilson Compression Testing Machines meet or exceed ASTM C39 requirements ...
The strength of concrete is measure in terms of pounds per square inch (or PSI). PSI is a measure of compressive strength, or the ability of the material to carry loads and handle compression. 1.) 2500-3000 PSI. Most concrete has a PSI rating of 2500 to 3000. This type of concrete can be used for sidewalks and residential driveways.