2 edition of Compressive strength of concrete with Addis Ababa cement and suggested specifications. found in the catalog.
Compressive strength of concrete with Addis Ababa cement and suggested specifications.
Includes bibliographical references.
|LC Classifications||TA440 .Z38|
|The Physical Object|
|Number of Pages||22|
|LC Control Number||73983514|
Contact BINQ Machinery. If you have any questions, comments, and suggestions for our website, please contact us by email or call us. When you need to complete a superior treatment designed to enhance the material and practical, for BinQ count as your equipment, professional technical support and product suppliers. Findings showed that concrete containing marble dust 0 to 15%showed the highest amount of compressive strength, and split tensile strength of concrete. Further studies can be carried out as this study only concludes that there is an increase in strength upto 15% replacement of cement by the marble powder.
Completing the construction work for Ethiopian National Trunk Road 3. Mr. Tomoyuki Ogawa (Kajima Corporation) The construction work for Ethiopian National Trunk Road 3 started in as a project financed by a grant from the government of Japan and completed full construction of km from Addis Ababa, the capital of Ethiopia, to Debre Markos in Contact Us. [email protected] No Jianye Road, South Jinqiao Area, Pudong, Shanghai, China.
The particle shape of aggregates is determined by the percentages of flaky and elongated particles contained in it. For base course and construction of bituminous and cement concrete types, the presence of flaky and elongated particles are considered undesirable as these cause inherent weakness with possibilities of breaking down under heavy loads. Since May-June , Vol 31 No Lideta Mercato Addis Ab Addi Ababa, b Ethi Ethiopia i Geosynthetic technology Construction health and safety Painting a commerical building.
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Cement being the main constituent of concrete plays a vital role in concrete production. In Ethiopia, the cement consumption has grown well with a growth rate of about % per year.
Hence, an alternative material to partially replace cement was initiated to reflect the needs of local community in the study area.
The waste quantity of animal bones has Author: Abrham Hawaz W, amanuel, Emer Tucay Quezon, Mamuye Busier. Some Experiments on Stabilized Soil Blocks, (2) Berhane, Z., Compressive Strength of Concrete with Addis Ababa Cement and Suggested Specifications, (3) Berhane, Z. Preliminary Investigation Results on the Pozzolanic Properties of Local Scoria, (4) Medhin, B.W., Some Characteristics of Addis Ababa Soils, (5) : Haile Giorgis Workneh.
Results showed that a water-cement ratio of resulted in a dry and brittle mix that led to compressive strength less than 15 MPa but a high permeability rate of approximately 20mm/s. Four different C concrete mixes with bagasse ash replacements of 0%, 5%, 15% and 25% of the Ordinary Portland cement were prepared with water to cement ratio of and cement content of kg.
compressive strength of concrete. The tests were conducted on the most used concrete constituents in Addis Ababa city in Mafcon Engineering and construction (PLC) laboratory. Tests for compressive strength of concretes are carried out by six cubes of size 15cm*15cm*15cm.
All test specimens are prepared in accordance to the ACI mix-design. cement and water content of a concrete mixture—while maintaining a constant water-cement ratio—can result in equal or reduced compressive strength, and can increase slump loss by a factor of two or more (Whiting and Dziedzic ).
Water reducers decrease, increase, or have no effect on bleeding, depending on the chemical composition of the. ADDIS ABABA INSTITUTE OF TECHNOLOGY ADDIS ABABA UNIVERSITY DEPARTMENT OF CIVIL ENGINEERING CENG REINFORCED CONCRETE STRUCTURES I Academic Year: / COURSE OUTLINE 1. Introduction General Introduction History of Development of concrete Materials Aspect of Reinforced Concrete Concrete.
aggregate, the results of any strength tests and the location of concrete in the works. These records shall be made available to the Superintendent.
The proportions of aggregate and cement for any concrete shall be such as to produce a mix which will work readily into corners and angles of the forms and around tendons and reinforcement with. experiment is based on the specifications used for RC water tanks employed in Ethiopia.
The first experiment involved testing of a total of 18 specimens at the ages of 3, 7, and 28 days for compressive strength. The compressive strength of concrete. The basis for strength and material specification of this experiment is based on the specifications used for RC water tanks employed in Ethiopia.
The first experiment involved testing of a total of 18 specimens at the ages of 3, 7, and 28 days for compressive strength. The compressive strength of concrete was determined by testing the cubes in a.
The compressive strength of the hardened concrete increased up to a 50% replacement of scoria as a fine aggregate compared to the control concrete in which the river the sand was used. Thus, scoria can be used up to this level of replacement to produce the target design strength of concrete of C grade.
The specified compressive strength Fc is measured by compression tests on 15cm by 30cm cylinder tested after 28 days of moist curing. This is the strength specified on the construction drawings and used in the calculations. Tensile Strength of Concrete.
The tensile strength of concrete falls between 8 and 15 percent of the compressive. The beams were poured by using concrete made up of Ordinary Portland Cement, Ravi Sand and Margalla Crush as fine coarse aggregate respectively having maximum size as 19 mm.
Mix proportions were (C: S: C.A) and water to cement ratio was for designed strength of psi with slump of in ( mm) to guarantee the workability. the compressive strength f c ′ for concrete, or of the yield stress f y for the steel reinforcing bars. Safety Provisions of the ACI Code Load factors are applied to the loads, and a member is selected that will have enough strength to resist the factored loads.
In addition, the theoretical strength of the member is reduced by the. Table 1: Pervious Concrete Properties from the Literature (Schaefer et al) day Void Unit Flexural Permeability Compressive Reference Ratio Weight Strength Strength (%) (kg/m3) (mm/s) (MPa) (MPa) - United States to to Tennis et al, 15 to 25 to to to Olek et al, 15 to 35 NA NA NA This variety of concrete has a minimum day compressive strength of 17 MPa, an equilibrium density between and kg/m 3, and a composition entirely of lightweight and normal-density aggregate materials (ACI ).
Standard Practice for Preparing Concrete Blocks for Testing Sealants, for Joints and Cracks: D / DM - 11() Standard Specification for Crack Filler, Hot-Applied, for Asphalt Concrete and Portland Cement Concrete Pavements: D - 13() Standard Practice for Melting of Hot-Applied Joint and Crack Sealant and Filler for Evaluation.
The construction industry consumes about 40% of the global energy; is the largest global consumer of raw materials; and is responsible for 25–40% of the world’s total CO 2 emissions and 28% of solid waste in the form of construction debris .Over 10 billion tons of Portland cement concrete (PCC) is produced annually worldwide due to its versatility, durability and.
Chart Results of Compressive strength for CCA Concrete mixes Fig shows the development of compressive strength of concrete mixes with crushed coarse aggregate, under different types of. 45 And different values of cement: 0% 3% 6% 9% The procedure is the same explained, so I will only show the results plotted on figure Figure Relationship between cement content and compressive strength for the three different types of mixture.
Concrete cubes of grades M, M, M, M and M were cast using potable and grey water and tested for compressive strength on 7th day and 28th day. The results of compressive strength of concrete with grey water are found almost same or little less than the concrete with potable water.Compressive Strength of Concrete -Cube Test [PDF], Procedure, Results.
Next article. Aggregates for Concrete as per American Standards – ASTM [PDF] Calculate Quantities of Materials for Concrete -Cement, Sand, Aggregates. Quantity of Cement and Sand Calculation in Mortar. Preparation of Bar Bending Schedule (BBS) and Its Advantages.The compressive strength for concrete in 28th days was Mpa, Mpa, Mpa, and Mpa, Dimma, Gambella, Meti and Tepi sand respectively by using the similar course aggregate.
All the above results were compared with the standard specifications.