Factors Affecting Rheological Properties of Fresh Concrete
The Constructor
FEBRUARY 15, 2017
The rheological properties of concrete are dependent on the factors like mix proportions, consistency, the properties of each ingredient present in.
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PROPERTIES OF FRESH CONCRETE
The Constructor
NOVEMBER 4, 2012
Workability of Concrete: Concrete workability is the relative ease with which a fresh mix can be handled, placed, compacted, and finished without.
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Asbestos in Concrete
The Constructor
MARCH 17, 2019
Asbestos is a naturally occurring thin crystalline long fibres that is used in the preparation of concrete to enhance the fresh and hardened property.
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Antifreeze Admixtures for Concrete during Cold Weather Concreting
The Constructor
DECEMBER 8, 2017
Freezing reduces strength of concrete by 20 to 40 % when fresh concrete is subjected to freezing. Antifreeze admixtures of concrete, its properties.
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How does Natural Pozzolan affect Concrete Properties? [PDF]
The Constructor
JUNE 9, 2020
Natural pozzolans affect several concrete properties in both fresh and hardened state. It improves the workability of concrete and increases its.
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6 Types of Deleterious Substances in Aggregate
The Constructor
JULY 18, 2019
Deleterious materials in aggregate are those substances which detrimentally effect the fresh and hardened properties of concrete for instance.
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Rheology of Concrete – Rheological Parameters of Fresh Concrete
The Constructor
JANUARY 13, 2017
The study of rheology of concrete provides information on properties of fresh concrete such as deformation, behavior of mix, and placement of mixed.
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Back to basics: The four steps to creating effective concrete
Construction Specifier
JANUARY 5, 2024
By Chris Bennett, iSCS, CDT and Keith Robinson, FCSC, FCSI, RSW, LEED AP Just as successful specifications enjoy the four attributes of being clear, concise, correct, and complete, concrete also has four steps that are crucial to its success. When combined with water, the cement binds the materials together, creating concrete.
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Concrete tips: why effective curing practices are important
Construction Specifier
OCTOBER 10, 2022
Proper concrete curing methods are critical for achieving the overall strength, durability, performance, and aesthetics of concrete. It is directly related to reducing maintenance costs, extending service life, and enhancing the sustainable attributes of concrete. Craft, DBA, CSI, CDT, CCCA, ASTM, ACI, LtCol USMCR (ret.).
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Go-ahead for 48-storey Birmingham BTR tower
Construction Enquirer
JULY 6, 2023
Designed by architect Metropolitan Workshop, the proposal for 2 Snowhill Plaza would replace a vacant commercial property acquired by the duo last year. The tower will become a fresh addition to the emerging cluster of taller developments in Birmingham City Centre. The building’s plinth will be glass reinforced concrete
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83 Properties of Hardened Concrete with Blast Furnace Slag (GGBFS)
The Constructor
JANUARY 16, 2017
The physical properties of Ground Granulated blast furnace slag (GGBFS) provides advantages to the concrete in fresh state as well as in its hardened.
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What Is Fresh Concrete | Properties of Fresh Concrete
CivilJungle
SEPTEMBER 29, 2020
What Is Fresh Concrete? When concrete is its plastic state, it is known as fresh concrete. Fresh concrete can be easily molded to a durable structural member. It can be prepared on the spot and may give a wide range of properties from easily available raw materials. Workability. Temperature.
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A Perfect Mix: VERIFI® and Portland Limestone Cement
GCP Applied Technologies
MAY 26, 2022
Combining Portland Limestone Cement with In-transit Concrete Management Enhances Performance & Sustainability. Combining Portland Limestone Cement with In-transit Concrete Management Enhances Performance & Sustainability. Reducing CO 2 is a critical endeavor for the concrete industry. VERIFI® In-Transit Concrete Management.
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How to reduce bug holes in concrete
GCP Applied Technologies
NOVEMBER 10, 2020
How to reduce bug holes in concrete. Discover best practices for improving the aesthetics of your concrete, including reducing bug holes. When working on a concrete structure where aesthetics are important, extra care needs to be taken to prevent bug holes. Concrete handing: Pour rate. Phillip.fry@gc…. November 10, 2020.
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What Is Hardened Concrete | Properties of Hardened Concrete
CivilJungle
JUNE 17, 2021
What Is Hardened Concrete? Hardened concrete is a type of concrete that is strong and have the capacity to bear the structural as well as service loads that are applied to it. Hardened concrete is one of the strongest and durable construction material s. What Is Concrete | 31 Different Types of Concrete.
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What Is RQD | Advantages of Rock Quality Designation | Limitations of Rock Quality Designation (RQD)
CivilJungle
OCTOBER 21, 2020
Evaluation of the Mechanical Properties of the rocks and Characteristics of rocks is one of the challenging parts of rock engineering. Hence, there must be a perfect parameter which is used to evaluate the Quality and the Properties of the rock mass. Introduction of RQD. What Is RQD?
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How is Concrete Made | What is Concrete | Components of Concrete | How to Mix Concrete
CivilJungle
NOVEMBER 1, 2020
How Is Concrete Made. Concrete is a composite material composed of fine and coarse aggregat e bonded together with a fluid cement ( cement paste ) that hardens (cures) over time. What Is a Concrete. Concrete is widely used building material all over the world in the Construction Industry. Components of Concrete.
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98 FORMWORK AND GOOD FORMWORK PROPERTIES
The Constructor
MARCH 19, 2012
When concrete is fresh and in its liquid state it must be restrained within a mould in order for it to set in its required shape. When concrete is fresh and in its liquid state it must be restrained within a mould in order for it to set in its required shape. Concrete is approximately 2.4
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Nominal Mix Concrete Vs Design Mix Concrete
Civil Lead
MARCH 14, 2020
Nominal Mix Concrete Vs Design Mix Concrete Concrete is made up of mixing cement, sand, aggregate, admixtures and water. The strength, workability and durability of concrete depend on mixing proportions of its ingredients. To simplify this statement let us take an example of M 20 grade concrete. Kg/m 3 F.A.
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What is Self-Compacting Concrete and How is it used
Construction Cost Estimating
DECEMBER 22, 2019
Self-compacting Concrete, or Self-Consolidating Concrete, generally called SCC, is a fresh concrete that runs under its own weight and does not want external oscillation to undergo compaction. Constructors use SCC in the building structures where it is troublesome to use vibrators for the consolidation of concrete.
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How to Reduce the Cost of Concrete Production
GCP Applied Technologies
MAY 4, 2020
How to Reduce the Cost of Concrete Production. Two of the toughest challenges we hear for ready-mix producers are the lack of automation available and the cost and hassle of returned concrete. The problem: Rejected concrete loads are costly. Another occurrence is a project simply has leftover ready-mix concrete. .
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How to reduce bug holes in concrete
GCP Applied Technologies
NOVEMBER 10, 2020
How to reduce bug holes in concrete. Discover best practices for improving the aesthetics of your concrete, including reducing bug holes. When working on a concrete structure where aesthetics are important, extra care needs to be taken to prevent bug holes. Concrete handing: Pour rate. Phillip.fry@gc…. November 10, 2020.
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The role of Viscosity Modifying Admixture (VMA) in Concrete
Construction Cost Estimating
DECEMBER 5, 2018
Viscosity Modifying admixtures or VMAs belong to the admixtures which are applied to modify various properties of fresh concrete ranging from viscosity, workableness, cohesiveness etc. The functionality and uses of VMA for several types of concrete are given below. The yield point of concrete is not impacted with VMA.
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Hempcrete Vs Concrete | What Is Hempcrete | What Is Concrete
CivilJungle
OCTOBER 19, 2020
It is also known as hemp-concrete. What Is Concrete? Concrete is the final product resulting from mixing cement , aggregates (including sand), water, and mixtures. The first use of concrete was by the Roman Empire. The Pantheon is the largest unreinforced concrete dome in the world, built-in 120 A.D.
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What Is Concrete Resurfacing | How to Resurface Concrete | Concrete Resurfacing Material | Concrete Repair and Resurfacing
CivilJungle
JANUARY 3, 2021
What Is Concrete Resurfacing? Concrete resurfacing is the process to provide a brand new look to damaged concrete. In the process of resurfacing of concrete, a concrete coating is applied on the surface of existing concrete. Types of concrete resurfacing-. Concrete Crack Repair.
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52 BENEFITS OF USING STEEL FIBRES IN CONCRETE
The Constructor
JANUARY 1, 2012
The benefits of using steel fibres in concrete are as follows: 1. The benefits of using steel fibres in concrete are as follows: 1. It is generally not possible to achieve the same area of reinforcement to area of concrete using steel fibres as compared to using a network of reinforcing bars of wires.
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What Is Reinforced Brick Masonry | Construction of the Reinforced Brick wall | What Is Reinforced Brick Concrete
CivilJungle
OCTOBER 27, 2020
The property of reinforced brick masonry is that it is capable of resisting compressive shear stress as well as tensile shear stress. Reinforced brick masonry has the property of resistance to the lateral forces. The construction by using reinforced brick masonry is cheaper as compared to reinforced cement concrete.
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What Is A Concrete Pump | How Does A Concrete Pump Work
CivilJungle
MAY 1, 2022
What Is A Concrete Pump? A Concrete Pump is operated to transmit freshly blended concrete from the containers to where it must serve at the construction site, and therefore, it is an important differentia of any construction project. Concrete Pump on Construction Site. Types of Concrete Pump. Truck Mounted Pump .
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What Is Lightweight Concrete | Properties of Lightweight Concrete | Uses of Lightweight Concrete | Advantages & Disadvantages of Lightweight Concrete
CivilJungle
MARCH 16, 2021
What Is Lightweight Concrete? Lightweight concrete can be defined as a type of concrete which includes an expanding agent in that it increases the volume of the mixture while giving additional qualities such as nailbility and lessened the dead weight. How much does Concrete Weigh? 10 pounds per cubic meter.
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Fly Ash in Concrete | Advantages & Disadvantages of Fly Ash concrete | Use of Fly Ash in Concrete | Applications for Fly Ash concrete | Benefits of Fly Ash Concrete
CivilJungle
MAY 1, 2021
That is used in concrete mixtures , fly ash increases the strength and isolation of the concrete and makes pumping smoother. Also, Read: 10 Difference Between Mortar and Concrete | What Is Mortar & Concrete | Types of Mortar & Concrete. Fly Ash in Concrete. What Is Fly Ash? Silicon Oxides.
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TYPES OF CRACKS IN CONCRETE BEAMS
The Constructor
NOVEMBER 8, 2011
Cracks in concrete beams due to increased shear stress 2. Cracks in concrete beams due to corrosion or insufficient concrete cover 3. Cracks parallel to main steel in case of corrosion in beams 4. Cracks due to increased bending stress in beams 5.
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Common methods for concrete construction
Construction Cost Estimating
MARCH 17, 2019
In this civil engineering article, you will get detail information on the most common methods for developing a concrete structure. Designing the concrete mix: The most vital part in the method is to find out the components that will form the concrete and their ratios.
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TEMPERATURE EFFECTS ON CONCRETE
The Constructor
MARCH 21, 2012
The size of movement depends upon the change in temperature and the coefficient of thermal expansion o f concrete. The coefficient of thermal expansion of concrete is influenced largely by the coefficient of thermal expansion of the aggregates since the aggregate occupies 70-80% of the volume of the concrete.
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Waterproofing testing: A new industry standard set
Construction Specifier
JULY 11, 2023
Current standard testing of hydrostatic pressure resistance of a waterproofing membrane is based on ASTM D 5385 which tests a fresh specimen, with no water immersion or aging, at water pressure up to 689 kPa (100 psi). For this to be achieved, the membrane must be intimately and continuously bonded to the structural concrete slab.
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CONCRETE CURING METHODS
The Constructor
NOVEMBER 21, 2011
Both the rate and degree of hydration, and the resulting strength of the final concrete, depend on the curing process that follows placing and consolidating the plastic concrete. This reaction, called hydration, produces a stone-like substance—the hardened cement paste.
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PERMANENT FORMWORK METHOD FOR BEAM CONSTRUCTION
The Constructor
MARCH 27, 2012
More efficiently, they can act compositely with the in-situ concrete. Indeed some beams, particularly in seismic areas are designed to act both compositely and non-compositely in the same span.
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230 COMMON STRUCTURAL FAILURE CAUSES
The Constructor
NOVEMBER 19, 2011
Most lessons in engineering decision making come from the cases of histories of failures of structures, which itself are the results of a bad judgement, thus making us understand the pitfalls in conceptual design. From these experiences from past, the common causes of structural failures are understood.
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How to check the workability of concrete with flow table test
Construction Cost Estimating
AUGUST 3, 2018
Workability belongs to a vital factor of concrete that directly affects the strength, quality and look of concrete as well as finds out how easily freshly produced concrete is blended, set, compacted and finished by retaining its consistency as it is. Now, set the metal cone at the central part of the flow table and rest on it.
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TYPES OF CRACKS IN REINFORCED CONCRETE SLABS
The Constructor
NOVEMBER 8, 2011
Cracks in reinforced concrete columns due to Steel Corrosion (cracks parallel to steel bars) 2. Cracks in reinforced concrete columns due to Steel Corrosion (cracks parallel to steel bars) 2. Cracks in reinforced concrete columns due to shrinkage of concrete 3.
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223 FACTORS AFFECTING STRENGTH OF CONCRETE
The Constructor
MARCH 21, 2012
in dry conditions), it should be suitable for use in concrete. Quality of Raw Materials: Cement: Provided the cement conforms with the appropriate standard and it has been stored correctly (i.e.
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STRUCTURAL USES OF PRECAST CONCRETE
The Constructor
MARCH 25, 2012
Use of Precast Concrete in frames: There are two main types of precast building frame. The structural frame consists of slabs, beams and columns. Structural frames are mainly used for offices, car parks and retail developments. The cross-wall frame consists of floor slabs and solid walls.
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233 Some vital characteristics of concrete in fresh & hardened state
Construction Cost Estimating
JUNE 6, 2019
STRENGTH: Concrete has good strength against compression but it is moderately weak in tension and bending. Significant amount of force is required to crush concrete, but marginal force is required to pull it apart or produce bending cracks. Proper workability is necessary to form inexpensive and superior quality concrete.
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Subways in America
The Constructor
NOVEMBER 11, 2011
Posted in Category: Videos Leave a Reply Click here to cancel reply Your name (Required) Your e-mail (Your email wont be published) (Required) Your website Notify me of followup comments via e-mail About The Author This blog is authored and maintained by Gopal Mishra. He is the founder of The Constructor and works in a reputed construction company.
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What Is Shotcrete | Shotcrete & Concrete | Shotcrete Technology | Types of Shotcrete Technology | Advantages of Shotcrete | Disadvantages of Shotcrete
CivilJungle
JANUARY 7, 2021
Shotcrete/mortar/spray-concrete is a kind of refined concrete drizzled by gas hose-pipe nozzle at high pressure & velocity on a projectile motion on a prepared wall surface. For slope protection with wire mesh and in some confined areas wherever prosaic concreting canno t be done. Shotcrete & Concrete.
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