Compressive strength

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  • 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 recycled coarse aggregates requires a reduction of 4% to 10% of the ratio a / c of 5% to 10% more cement than the conventional concrete to give it same compressive strength at 28 days of conventional concrete. For the lightweight concrete produced, the…

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

    Abstract: The study investigated the 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…

    Words: 1226 - Pages: 5
  • Ternary Systems Case Study

    dependence of compressive strength on water content of ternary systems. As w/s decreases, total water content in the mix decreases and results in increased strength, except two mixes in series 4 (S4.30 and S4.40). These two mixes include very high filler content at 30-40% in which the decrease of water content might not compensate the strength loss due to the reduction of cementitious materials (MgO + SF). From this figure, the effective range of w/s to achieve the highest strength is found in…

    Words: 1464 - Pages: 6
  • The Effect Of Crushed Quartz Filler On Water Reduction

    lowest 28-day compressive strength of 43.7 MPa. The introduction of filler content, as at only 10%, is able to reduce water content dramatically to w/b=0.27, leads to the impressive improvement of compressive strength to 85 MPa. Further increase of filler content to 40% results in higher reduction of water content to as low as w/b=0.21 with only a marginal increase of compressive strength to 87 MPa. Testing results have shown that ternary M-S-H binder systems of MgO-SF-QF have higher compressive…

    Words: 1558 - Pages: 7
  • Concrete Mix Calculation

    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
  • Bulk Density And Porosity Lab Report

    Laboratory Report 2: Soil Texture, Bulk density and Porosity Introduction Soil Texture The classification of soil texture is determined by the percentage of each of the soil separates. Soil separates are mineral particles smaller than 2mm, and these particles are sand, silt and clay. These textures are separated by the size of the particles, with sand being the largest between 2mm and 0.05mm, silt at between 0.05mm and 0.002mm, and clay at <0.002mm. The size of the particles influences the…

    Words: 1253 - Pages: 6
  • V-Funnel Test Essay

    Chapter 3: Tests and Implementation. The self compacting geopolymer concrete should possess following properties: 1. Flow ability: It is the property of fresh concrete mix to flow and fully fill complex formwork under an action of its self weight. Slump flow test is performed to check flow ability of concrete. 2. Viscosity: It is the property of concrete to resist flow at a glance when it started. Low viscosity concrete will flow quickly but for a short duration while high viscosity concrete…

    Words: 1824 - Pages: 8
  • Specific Gravity Bottle Essay

    CHAPTER-1 INTRODUCTION Concrete a manmade material widely and greatly used in construction Industry. This concrete is a mixture of adequate proportion of cement, water and aggregate. Hardening (or) strength of this material is obtained by the chemical action between water and cement. As the time increases the stronger it grows (i.e strength of concrete is directly proportion to its age).The durability, strength, versatility and other characteristics of concrete depends upon the properties and…

    Words: 10504 - Pages: 43
  • Bamboo Essay

    The hollow vessels act as a crack tip energy absorber that dissipates the energy of the crack propagation. The vessels help enhance the fracture toughness and also help reduce the overall weight of the bamboo, thus making it very lightweight. The bamboo reacts to crack propagation, by increasing its fracture toughness as the strength of the crack growth also increases. The fibers within the bamboo contribute to a lot of the fracture toughness it has, as well as the combination of the parenchyma…

    Words: 821 - Pages: 4
  • Geopolymer Concrete Lab Report

    This GPC mix has two limitations such as delay in setting time and necessity of heat curing to gain strength. In order to overcome these limitations of GPC mix, 10% of fly ash was replaced by OPC to overcome the limitation necessity of heat curing and 5% of fly ash was replaced by Ground-Granulated Blast-Furnace Slag (GGBS) to overcome the limitation delay in setting time. In case of Glass fiber reinforced geopolymer concrete composites (GFRGPCC) mixes Glass fibers were added to the geopolymer…

    Words: 1349 - Pages: 6
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