Concrete

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  • Concrete Lab Report

    On March 1st, 2016, the CEE 3030 Construction Materials class mixed concrete with varying water cement ratios and created three, 3” diameter by 6” high cylinders and three, 6” diameter by 12” high cylinders. The cylinders were cast according to the ASTM C31 standard. The class was divided into sections, then the sections were divided into teams. The sections mirrored each other, and teams created concrete with 0.40, 0.44, 0.48, and 0.52 water cement ratio. Over the next 28 days the cylinders were tested for compressive strength, f’c, unit weight, and resistivity. Before casting the concrete was tested for workability by a slump test, unit weight by a unit weight test, and for air content by an air entrainment test. All test conducted followed…

    Words: 1980 - Pages: 8
  • Basic Characteristics Of Concrete

    Concrete is a building material that looks like stone. The Latin word “concretus” means to grow together. Concrete is a composite material,composed of coarse granular material (the aggregate or filler) entrenched in a solid matrix of material by (the cement or binder) that fills the space between the aggregate particles and pastes them together. Depending on what kind of binder is used, concrete can be divided into nonhydraulic cement concrete (made of nonhydraulic cement), hydraulic cement…

    Words: 852 - Pages: 4
  • Concrete Mixture Design

    mixture design that is shown in table 1 is the basic components that will go into each group of concrete. The concrete design shown in table 1 has a designed 28 days compression strength of 40 MPa (5800 psi). With the intention to test the concrete in a shorter time span, the compression was design at 40 MPa at 28 days in order to get a compression strength of 30 MPa after 7 days. This mixture design was determine from using a couple design procedure and also contacting a representative from…

    Words: 979 - Pages: 4
  • The Concrete Strength Analysis Of Perdikaris, And Concrete

    found in their work that the size is the main element of the concrete strength, as in their study they concluded that a moderate size is different to be broken than large size. Mather and Darwin (1976, 1977) identified that the medium size is the more strengthen and durable concrete type. Burnet and wolsier (1989) indicated that building made of concrete materials always be considered as strong and valid as the materials used in it, would be assumed and reassured as of high quality and high…

    Words: 924 - Pages: 4
  • Essay On Concrete Mix

    testing of the concrete mix design for the foundation of a construction project. The mix should meet the requirements of a 28-day compressive strength of 4000 psi and have a 2- to 4- inch slump. Additionally, the 14-day strength must also be at least 3500 psi for the project. Results: The concrete mix was designed based on ASTM C192; however, the slump of the mix was not in accordance to ASTM 143 because the measured slump was greater than 6 inches. So, all the requirements for ASTM C192…

    Words: 1436 - Pages: 6
  • Geopolymer Concrete Lab Report

    3. MIX DESIGN 3.1 Design of Geopolymer Concrete Mixtures: In the mix design of geopolymer concrete the role and the influence of aggregates are considered to be the same as in the case of Portland cement concrete. The mass of combined aggregates may be taken to be between 75% and 80% of the mass of geopolymer concrete. Coarse and fine aggregate together were taken as 77% of entire mixture by mass. Fine aggregate was taken 30% of total aggregate. Fly ash and alkaline liquids was taken 23% of…

    Words: 1349 - Pages: 6
  • Compressive Strength Of Concrete In Radonjanin, Marinkovic And Al Malte

    As can be seen, multicem concrete showed resistance below the limit for structural lightweight concrete, which can be classified so as insulating concretes or moderate resistance. However, according to Radonjanin, Malesev, Marinkovic and Al Malty (2013), concrete made from 100% recycled coarse aggregate can achieve high compressive strength since large amount of cement to be added, which is therefore not an economical proposition. Still according to the author, concrete made with 50% or 100% of…

    Words: 1207 - Pages: 5
  • The Workability And Compressive Strength Analysis Of Sawdust Ash (SDA)

    workability, and compressive strength properties of the concrete produced by replac-ing 5%, 10% and 15% by weight of ordinary Portland cement with Sawdust Ash (SDA). Slump test was carried out on the fresh concrete and compressive strength test on hardened concrete. The concrete cubes were tested at the ages of 3, 7, 14 & 28 days. The results showed that Sawdust Ash is good with use in cement. The slump decreased as the Sawdust Ash content increased indicating that concrete becomes less workable…

    Words: 1226 - Pages: 5
  • Calcium Chloride Lab Solution

    1. The concrete mix proportions for the batch were calculated before the beginning of the lab by a select few group members. Calculations were done with goal of the having the greatest early strength as reasonably possible. To accomplish this, the accelerator agent of calcium chloride was added at a proportion of 2 Ib. of calcium chloride to every 100 Ib. of cementitious material. This ended up being 0.483 Ib. of accelerator. The physical properties, like specific gravity and percent absorption,…

    Words: 1055 - Pages: 4
  • Multivariate Factors To Build A Formable Bridge

    characteristics of the cement mixture. Of the aforementioned factors, location is significant in informing Material Engineers regarding the type of environment in which the structure is built. The environment thus plays a pivotal role and governs the formation of cement and the type of steel utilised. In this scenario, the proximity of the bridge to the river enables us to infer the presence of specific ions and particles, which must be considered prior to ascertaining the most effective…

    Words: 1981 - Pages: 8
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