Just fill in the form below, click submit, you will get the price list, and we will contact you within one working day. Please also feel free to contact us via email or phone. (* is required).
2019-10-10 · Why do a slump test? A concrete slump test is a way of finding out the consistency of different concretes. The benefits of performing a slump test are that it shows the workability of the concrete and the ease with which it flows, as well as being an indicator of an improperly mixed batch.
Get PriceThe slump test is a standardized procedure performed on fresh, wet concrete to determine its consistency and ability to flow. The test consists of filling a conical mold with concrete to a specified height. The mold is then removed, and the concrete is allowed to deform under its own weight.
Get Price2007-7-1 · In this paper, the slump flow is a function of the content of all concrete ingredients, including cement, fly ash, blast furnace slag, water, superplasticizer, coarse aggregate, and fine aggregate. We will compare ANN and second-order regressions in modeling concrete slump flow, and explore these models with response trace plots to observe the slump flow behavior.
Get PriceConcrete workability, quantified by concrete slump, is an important property of a concrete mixture. Concrete slump is generally known to affect the consistency, flowability, pumpability, compactibility, and harshness of a concrete mix. Hence, an accurate prediction of this property is a practical need of construction engineers.
Get Price2018-8-9 · Since SLUMP and FLOW both describe the consistency (rheologic properties) of fresh concrete, it is reasonable that they correlate somehow. Mechtcherine and Shyshko (2015) prodive a mathematical description of this process using a discrete element approach . Moreover, we can assume that both are not correlated with compressive strength since that is the result of other processes during hardening (aging) of the concrete.
Get Price2014-11-11 · The slump of concrete depends on the concrete’s design mix proportion. As noticed for other properties of concrete, the slump value also exhibits a highly nonlinear and complex functional relationship with concrete’s constituents.
Get PriceFresh concrete will lose their slump with the passage of time (delay) (SCG). With the reduced slump value concrete mix can be rejected. It is certainly to the readymix. The slump loss harm value
Get PriceEspecially, the characteristics of shear-thickening and shear-thinning on fresh concrete often appeared due to different preparation technology and mix proportions [ 1, 2 ]. Slump test is often used in laboratory and engineering applications to evaluate the flow ability of fresh concrete.
Get PriceConcrete: Concrete Compressive Strength Data Description. These data were collected by I-Cheng Yeh to determine how the compressive strength of concrete is related to its ingredients (cement, blast furnace slag, fly ash, water, superplasticizer, coarse aggregate, …
Get Price2012-2-5 · Figure 1.1.10–6 compares the results of slump tests on two different concrete mixtures, normal and light, to computational results obtained with friction angles of 0° and 30.16°. The experimental data are generally within the range bounded by these two computational models.
Get Price2007-7-1 · ACI 211.1 (Standard practice for selecting proportions for normal, heavyweight, and mass concrete) assumes that, for a given maximum size of coarse aggregate, the slump or consistency of concrete is a direct function of the water content; i.e., within limits it is independent of other factors such as aggregate grading and cement content. 2.2.
Get PriceConcrete Slump Classification using GLCM Feature Extraction . Relly Andayani. 1, Syarifudin Madenda. 2 . 1. Civil Engineering Department, Gunadarma University, Indonesia
Get Price2018-3-3 · 1. Introduction. Monitoring the workability of freshly mixed concrete is necessary to ensure that the concrete is properly placed during construction and that adequately hardened strength is achieved after construction [].Both are related to structural integrity, safety, and construction productivity.
Get Price2021-3-23 · The function of water reducing agent in concrete is to adjust and improve the workability of fresh concrete and the performance of hardened concrete, which plays an important role in the good workability of fresh concrete. ... found that the concrete slump and 1 hour slump There is basically no major change in the degree of water, which meets ...
Get PriceThe methodology has been applied for modeling slump of ready mix concrete based on its design mix constituents, namely, cement, fly ash, sand, coarse aggregates, admixture, and water-binder ratio. Six different statistical performance measures have been used for evaluating the performance of …
Get Pricecompressive strength of concrete. In Fig. 1: X1, X2, X3,….., Xn are the input variables, where for the problem in hand, the values is defined as in Table I. The model is constructed to predict the properties of fresh concrete (i.e. Slump), and also to predict the properties of hardened concrete (i.e. strength in 7 days). With the same input ...
Get Price2018-3-3 · 1. Introduction. Monitoring the workability of freshly mixed concrete is necessary to ensure that the concrete is properly placed during construction and that adequately hardened strength is achieved after construction [].Both are related to structural integrity, safety, and construction productivity.
Get Price2021-3-23 · The function of water reducing agent in concrete is to adjust and improve the workability of fresh concrete and the performance of hardened concrete, which plays an important role in the good workability of fresh concrete. ... found that the concrete slump and 1 hour slump There is basically no major change in the degree of water, which meets ...
Get PriceWhat is the standard slump for concrete? Four-inch. What should be the slump height acceptable in the construction depends on the structure? What is the ideal value of slump? Answer 1 In case of a dry sample, slump will be in the range of 25-50 mm that is 1-2 inches. But in case of a wet concrete, the slump may vary from 150-175 mm or say 6-7 ...
Get Pricecompressive strength of concrete. In Fig. 1: X1, X2, X3,….., Xn are the input variables, where for the problem in hand, the values is defined as in Table I. The model is constructed to predict the properties of fresh concrete (i.e. Slump), and also to predict the properties of hardened concrete (i.e. strength in 7 days). With the same input ...
Get Price2000-3-30 · Figure 1 Influence of Dosage of Retarders on Slump (Neville, 1995). WRA has been used primarily in hot weather concrete placing, pumping, and tremie. Careful concrete placement is required, as the initial setting time of concrete will take place an hour earlier.
Get Price2017-8-4 · the slump flow test, an undisturbed sample of concrete was stored in a wheelbarrow and tested at times corresponding to the rheometer measurements. The results of the rheometer tests can be found in a previous publication.4 Figure 6 shows the on-site slump flow as a function of time for the three mixtures. As the data show, Mixtures 1
Get PriceSolution: From slump Table, 3 in is required [max is 4 in and min 1 in, usually 3 in ok] Max size of aggregate = ¾ in, weight of water required per cubic yard of concrete = 305 lb/yd 3, total air = 6.0%, and for concrete with f’c = 3500 psi. w/c = 0.54 (see Table 3.2.2.3 (a))
Get Price2010-7-2 · To estimate the slump, it is a nonlinear function of the content of all concrete ingredients, including cement, fly ash, blast furnace slag, water, superplasticizer, and coarse and fine aggregate. Therefore, slump estimation is set as a function of the content of these seven concrete ingredients and additional four important ratios.
Get Price2020-4-23 · Slump test is a laboratory or at site test used to measure the consistency of concrete. Slump test shows an indication of the uniformity of concrete in different batches.The shape of the concrete slumps shows the information on the workability and quality of concrete. The characteristics of concrete with respect to the tendency of segregation can be also judged by making a few tamping or blows ...
Get PriceThe concrete slump test is known as 'Standard Test Method for Slump of Hydraulic-Cement Concrete' and carries the code (ASTM C 143) or (AASHTO T 119). United Kingdom and mainland Europe [ edit ] In the United Kingdom, the standards specify a slump cone height of 300 mm, a bottom diameter of 200 mm and a top diameter of 100 mm.
Get Price2019-11-9 · THE SLUMP TEST The slump test is done to make sure a concrete mix is workable. The measured slump must be within a set range, or tolerance, from the target slump. Tools Standard slump cone (100 mm top diameter x 200 mm bottom diameter x 300 mm high) Small scoop Bullet-nosed rod (600 mm long x 16 mm diameter) Rule Slump plate (500 mm x 500 mm ...
Get PriceWhat is the standard slump for concrete? Four-inch. What should be the slump height acceptable in the construction depends on the structure? What is the ideal value of slump? Answer 1 In case of a dry sample, slump will be in the range of 25-50 mm that is 1-2 inches. But in case of a wet concrete, the slump may vary from 150-175 mm or say 6-7 ...
Get Price2019-12-9 · Keyword: concrete slump, ANFIS, RBF, MLP, artificial intelligence. 1. Introduction Concrete is one of the most commonly used building materials in plenty of civil engineering projects. The main reason for utilizing concrete is its reasonable strength as well as the flowability which enables us to construct any desired form of structural ...
Get Price2011-11-18 · Step 1: Choice of Slump: The data in Table 3.2.2.1 in [3] is used since it is not possible to provide equations for this table. The data it contains can not develop a continuous function. However, the data in Table 3.2.2.1 which is also represented as Table 1 in this work is simple enough to enable users to decide on the required slump for
Get Price2021-1-22 · Fig. 6-3. Scaled concrete surface resulting from lack of air entrainment, use of deicers, and poor finishing and curing practices. (52742) Slump, mm 125 100 75 50 25 0 Slump, in. 5 4 3 2 1 0 20 40 60 80 100 120 140 Control Water reducer L Water reducer H Elapsed time, minutes Fig. 6-4. Slump loss at 23°C (73°F) in concretes containing
Get Price2017-11-2 · Part 8: Self-Compacting Concrete-Slump-Flow Test). The slump flow test is conducted by (1) filling a concrete mix in an Abraham cone, and then (2) lifting the cone to allow the mix to flow under the effect of gravity. The top diameter of the Abraham cone is 100 mm, the bottom diameter is 200 mm, and the cone has a height of 300 mm.
Get Price1. Fresh concrete delivery method is a function of construction type, location, and access type. a) True b) False 2. Fresh concrete workability is measured by the slump test. If a project requires for the fresh concrete to be pumped, then that fresh concrete must have a ... a) high slump b) low Slump 3.
Get Price2020-4-23 · Slump test is a laboratory or at site test used to measure the consistency of concrete. Slump test shows an indication of the uniformity of concrete in different batches.The shape of the concrete slumps shows the information on the workability and quality of concrete. The characteristics of concrete with respect to the tendency of segregation can be also judged by making a few tamping or blows ...
Get Price2015-5-31 · 2 with a sigmoid function as follows; (out)j=f(net)j=1⁄(1+e-∝(net)j) (2) Where α is a constant which is used to control the slope of the semi-linear region. The sigmoid non-linearity activates in every layer except in the input layer [6]. The sigmoid function represented by Equation (2) gives inputs in (0, 1).
Get Price1.7.1 The Slump Test. Slump, as it relates to concrete, is a measure of consistency equal to the decrease in height, measured to the nearest 1/4 inch (6 mm) of the molded mass immediately after it has been removed from this molded mass created by the slump cone. The mold is in the form of a frustum (part of a solid cone intersected by the use ...
Get Price2019-11-9 · THE SLUMP TEST The slump test is done to make sure a concrete mix is workable. The measured slump must be within a set range, or tolerance, from the target slump. Tools Standard slump cone (100 mm top diameter x 200 mm bottom diameter x 300 mm high) Small scoop Bullet-nosed rod (600 mm long x 16 mm diameter) Rule Slump plate (500 mm x 500 mm ...
Get Price1. A concrete slump tester comprising: a measuring unit comprising an elongate rod, an inductance coil mounted on the rod and means for measuring the inductance of the coil; ... The coil inductance is a function of the depth of penetration of the rod into the tube and represents the height of concrete in the tube when the rod is placed in ...
Get Price2017-11-11 · slump flow value gives higher workability of concrete. Therefore, the first criterion having effects on concrete quality is the slump flow value which should be maximized. For each concrete mixes, the compressive strength was determined on three 15 cm •Determine C50 performance optimization objectives STEP 1
Get Price2016-9-23 · 1. With power switch ON and the function switch OFF, Batch and mix normally while noticing the indicator hand. To be most effective and assure the best possible slump change sensitivity, the indicator hand should be at 100 when dry material is batched into the mixer and a less than 1 “ slump is achieved. On the next batch
Get PriceConcrete Compressive Strength Data Set. Download: Data Folder, Data Set Description. Abstract: Concrete is the most important material in civil engineering. The concrete compressive strength is a highly nonlinear function of age and ingredients. Data Set Characteristics: Multivariate. Number of Instances: 1030. Area:
Get Price2017-8-5 · Slump mm 75 115 Air % 5.4 5.5 Initial Set Hr:Min 3:50 2:30 1-D Comp. Strength MPa 32.4 (4700 psi) 43.1 (6250 psi) Plant Steam-Cured Concrete 390 kg/m3 (658 lb/yd3) Type II Cement, w/cm = 0.32 Jeknavorian, A. et. al. Synergistic Interaction of Condensed Polyacrylic Acid-Aminated
Get Price