performance of concrete made with commercially produced

Performance of concrete made with commercially produced ...

May 01, 2001  Performance tests have been carried out for fresh and hardened properties of concrete made with commercially produced coarse recycled concrete aggregate and natural fine sand. Test results indicate that the difference between the characteristics of fresh and hardened recycled aggregate concrete and natural aggregate concrete is perhaps ...

get price

Performance of concrete made with commercially produced ...

Performance of concrete made with commercially produced coarse recycled concrete aggregate. Download. Performance of concrete made with commercially produced coarse recycled concrete aggregate. Bear Bluos. Related Papers. Freeze–thaw resistance, mechanical and transport properties of self-consolidating concrete incorporating coarse recycled ...

get price

THE PERFORMANCE OF CONCRETE MADE WITH COMMERCIALLY ...

Jul 07, 2015  the performance of concrete made with commercially produced recycled coarse and fine aggregates in the western cape B. Kutegeza and M. G. Alexander Mukesh C. Limbachiya and John J.

get price

10.1016/S0008-8846(00)00476-2 DeepDyve

Jun 11, 2020  Literature reports [1,6] confirm that the cement mortar attached to the aggregate particles primarily determines the performance of concrete made with laboratory-crushed recycled concrete aggregate. This residual mortar alters aggregate absorption and density and can have adverse effects on concrete performance. As widely reported

get price

Ettringite Formation and the Performance of Concrete

Feb 28, 2000  expect field problems in concrete made from that cement to show up relatively early in the life of the structure, probably within the first six months. Commercially produced portland cements in the U.S. contain less than 5% SO 3. The potential impact of excessive gypsum has thus been known for

get price

Performance of concrete made with commercially produced ...

Performance tests have been carried out for fresh and hardened properties of concrete made with commercially produced coarse recycled concrete aggregate and natural fine sand. Test results indicate that the difference between the characteristics of fresh and hardened recycled aggregate concrete and natural aggregate concrete is perhaps ...

get price

10.1016/S0008-8846(00)00476-2 DeepDyve

Jun 11, 2020  Literature reports [1,6] confirm that the cement mortar attached to the aggregate particles primarily determines the performance of concrete made with laboratory-crushed recycled concrete aggregate. This residual mortar alters aggregate absorption and density and can have adverse effects on concrete performance. As widely reported

get price

Ettringite Formation and the Performance of Concrete

Feb 28, 2000  expect field problems in concrete made from that cement to show up relatively early in the life of the structure, probably within the first six months. Commercially produced portland cements in the U.S. contain less than 5% SO 3. The potential impact of excessive gypsum has thus been known for

get price

Strength and Constitutive Model of Recycled Concrete under ...

Dec 17, 2018  “Performance of concrete made with commercially produced coarse recycled concrete aggregate.” Cement and Concrete Research , Vol. 31, No. 5, pp. 707–712, DOI: 10.1016/s0008-8846(00)00476-2. Article Google Scholar

get price

Concrete Mixing Methods and Concrete Mixers: State of the Art

Apr 01, 2001  Ultimately, the quality of the concrete produced determines its performance after placement. An important measure of the quality is the homogeneity of the material after mixing. This paper will review mixing methods in regards to the quality of the concrete produced. Some procedures used to determine the effectiveness of the mixing will be ...

get price

CONCRETE Optimizing the Use of Fly Ash in Concrete

concrete grow dramatically with close to 15 million tons used in con-crete, concrete products and grouts in the U.S. in 2005 (ACAA 2006). Historically, fly ash has been used in concrete at levels ranging from 15% to 25% by mass of the cementitious material component.The actual amount used varies widely depending on the application, the properties

get price

Concrete - Wikipedia

Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. In the past, lime based cement binders, such as lime putty, were often used but sometimes with other hydraulic cements, such as a calcium aluminate cement or with Portland cement to form Portland cement concrete (named for its visual ...

get price

The concrete conundrum - RSC

already produced in over 2 billion tonne quantities per year, by 2050, concrete use is predicted to reach four times the 1990 level. ‘The reason there’s so much concrete is because it is in fact a very low impact material,’ says Karen Scrivener, head of the construction laboratory at the Swiss Federal Institute of Technology, Lausanne.

get price

Bond characteristics of concrete made of recycled ...

May 30, 2017  The pull-out test is performed on concrete produced from both natural aggregate and recycled concrete aggregate, and an assessment of the subsequent performance is made. Mechanical properties such as compressive strength, split tensile strength and modulus of rupture are also reported.

get price

Comparison of Conventional and Advanced Concrete ...

Dec 06, 2016  Nowadays, high-performance concrete (HPC) and ultra-high-performance concrete (UHPC) are ranked among advanced concrete technologies. The application of the mentioned advanced technologies may have potential to improve the construction efficiency from several points of view. For instance, reducing of construction time and construction material, construction quality improving,

get price

Influence of recycled aggregate on slump and bleeding of ...

Oct 17, 2006  Hansen TC (1992) RILEM Reported 6, Recycling of Demolished Concrete and Masonry. EFN Spon, Bodmin, UK. Google Scholar 2. Sagoe-Crentsil KK, Brown T, Taylor AH (2001) Performance of concrete made with commercially produced coarse recycled concrete aggregate. Cem Conr Res 31:707–712. Article Google Scholar 3.

get price

High Performance Concrete Decorative and Green Concrete ...

Technical Data. A light weight concrete Produced by distributing foam / polystyrene bits in a uniform manner throughout a precisely designed concrete. UltraTech Litecon has a density ranging from 600 - 1500 Kg/m3 and above with a strength ranging from 1 to 5 MPa at 28 days.

get price

Types of concrete - Wikipedia

High-strength concrete has a compressive strength greater than 40 MPa (6000 psi). In the UK, BS EN 206-1 defines High strength concrete as concrete with a compressive strength class higher than C50/60. High-strength concrete is made by lowering the water-cement (W/C) ratio to 0.35 or lower. Often silica fume is added to prevent the formation of free calcium hydroxide crystals in the cement ...

get price

High strength concrete properties, admixture, and mix ...

The stone chips produced at this quarry site are very strong (abrasion loss is less than 23 percent), and therefore can be utilized for making high strength concrete A mixture of concrete using Maddhapara hard rock with W/C of 0.30, CEM Type I cement of 460 kg per cubic meter, and silica fume of 40 kg per cubic meter produced compressive ...

get price

Performance of concrete made with commercially produced ...

Performance tests have been carried out for fresh and hardened properties of concrete made with commercially produced coarse recycled concrete aggregate and natural fine sand. Test results indicate that the difference between the characteristics of fresh and hardened recycled aggregate concrete and natural aggregate concrete is perhaps ...

get price

High Performance Concrete Decorative and Green Concrete ...

Technical Data. A light weight concrete Produced by distributing foam / polystyrene bits in a uniform manner throughout a precisely designed concrete. UltraTech Litecon has a density ranging from 600 - 1500 Kg/m3 and above with a strength ranging from 1 to 5 MPa at 28 days.

get price

Concrete Mixing Methods and Concrete Mixers: State of the Art

Apr 01, 2001  Ultimately, the quality of the concrete produced determines its performance after placement. An important measure of the quality is the homogeneity of the material after mixing. This paper will review mixing methods in regards to the quality of the concrete produced. Some procedures used to determine the effectiveness of the mixing will be ...

get price

Concrete - Wikipedia

Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. In the past, lime based cement binders, such as lime putty, were often used but sometimes with other hydraulic cements, such as a calcium aluminate cement or with Portland cement to form Portland cement concrete (named for its visual ...

get price

The concrete conundrum - RSC

already produced in over 2 billion tonne quantities per year, by 2050, concrete use is predicted to reach four times the 1990 level. ‘The reason there’s so much concrete is because it is in fact a very low impact material,’ says Karen Scrivener, head of the construction laboratory at the Swiss Federal Institute of Technology, Lausanne.

get price

High strength concrete properties, admixture, and mix ...

The stone chips produced at this quarry site are very strong (abrasion loss is less than 23 percent), and therefore can be utilized for making high strength concrete A mixture of concrete using Maddhapara hard rock with W/C of 0.30, CEM Type I cement of 460 kg per cubic meter, and silica fume of 40 kg per cubic meter produced compressive ...

get price

Bond characteristics of concrete made of recycled ...

May 30, 2017  The pull-out test is performed on concrete produced from both natural aggregate and recycled concrete aggregate, and an assessment of the subsequent performance is made. Mechanical properties such as compressive strength, split tensile strength and modulus of rupture are also reported.

get price

For Cement's Massive Carbon Footprint, Some Concrete Steps

Nov 13, 2019  A real-world demonstration of their product is taking shape in Georgia at a multi-story commercial office building under construction in one of Atlanta’s hippest neighborhoods. Set to be completed by the end of the year, the building will be the first large-scale development to use concrete made with CarbonCure throughout the entire structure.

get price

STRUCTURE magazine Ultra-High-Performance Concrete

A Game Changer. Ultra-high-performance concrete (UHPC) was first introduced as reactive powder concrete (RPC) in the early 1990s by employees of the French contractor Bouygues. When introduced, it came in two classes: Class 200 MPa (29 ksi) and 800 MPa (116 ksi). In the U.S., several state departments of transportation have expressed interest ...

get price

Comparison of Conventional and Advanced Concrete ...

Dec 06, 2016  Nowadays, high-performance concrete (HPC) and ultra-high-performance concrete (UHPC) are ranked among advanced concrete technologies. The application of the mentioned advanced technologies may have potential to improve the construction efficiency from several points of view. For instance, reducing of construction time and construction material, construction quality improving,

get price

How concrete is made - material, manufacture, making, how ...

Concrete made with Portland cement is considered superior to that made with natural cement because it is stronger, more durable, and of more consistent quality. According to the American Society of Testing of Materials (ASTM), Portland cement is made by mixing calcareous (consisting mostly of calcium carbonate) material such as limestone with ...

get price

CIVIL ENGINEERING PROJECT TOPICS AND MATERIALS Modish ...

the comparative study of the compressive strength of concrete made with granite to that made with river round stone (pebble) and local stone: ... an assessment of the effect of organizational culture on the performance of quantity surveying firms in nigeria. ... investigation of the compressive strength of commercially produced sandcrete block ...

get price

The Advantages Of Insulated Concrete Form Foundations

Nov 20, 2019  Cement bonded wood fiber insulated concrete forms (ICFs) were originally, commercially produced by a Swiss company, Durisol in 1938. The product became popular because it was cost effective and ...

get price

This concrete can trap CO2 emissions forever

Jul 06, 2018  Concrete is the most abundant man-made material on earth. There's a good chance you're standing on it right now, and it's holding up the buildings around you. But concrete has an emissions problem.

get price