concrete placing mo civil engineering

Provide customers with tailor-made solutions

Concrete Placing - Mo Civil Engineering

The placing method will depend on the quantity of placed concrete and available space and equipment, if the concrete placed directly from the mixer, a small chute shall be used to avoid segregation of concrete. if the pump used to place concrete, pump hose

Get Price

Concrete Workability - Mo Civil Engineering

Mo Civil Engineering Menu. Concrete Workability. Concrete workability is a property of concrete determining the ease of mixing, placing and compacting concrete with minimum loss of homogeneity. Factors affecting workability W/C: increasing of water-cement ratio will increase concrete workability but it will reduce the strength of the concrete mix. increasing water-cement ration will increase ...

Get Price

Repairing of Concrete Bulging - Mo Civil Engineering

During the placing and compacting of concrete, forms may. Skip to content. Mo Civil Engineering Menu. Repairing of Concrete Bulging. Improper designing and installation of formwork for a concrete member can result in concrete Bulging. During the placing and compacting of concrete, forms may deflect largely in the weak areas. The deflection of forms will cause concrete to expand at this ...

Get Price

Preparing and Placing of Concrete Civil Engineering

Compaction of Concrete: In the process of placing concrete, air is entrapped. The entrapped air reduces the strength of concrete up to 30%. Hence it is necessary to remove this entrapped air. This is achieved by compacting the concrete after placing it in its final position. Compaction can be carried out either by hand or with the help of vibrators. (a) Hand Compaction: In this method concrete ...

Get Price

Segregation of Concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Segregation of Concrete. Segregation of concrete will adversely affect the properties of hardened concrete, it will significantly reduce the strength and durability, the separation of aggregate and cement paste know as segregation, cohesiveness is an important characteristic of concrete, cohesiveness determine the ability of concrete to hold all ingredient together ...

Get Price

Cracking of Concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Cracking of Concrete. Concrete crack is very common, and it can occur due to various reasons. The depth and the width of the crack will determine the severity of cracks on concrete members. Shortly after placing and compacting the concrete, the concrete will undergoes a shrinkage. Shrinkage can be defined as a reduction of size due to losing concrete moisture. The ...

Get Price

Foam Concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Foam Concrete. Foam concrete consists mainly of cement, air pores with fillers such as fly ash or sand. Coarse aggregates are not used in foamed concrete. Air pores in foam concrete are formed by agitating air with a foaming agent. The size of air bubbles ranges from 0.3 to 0.4 mm. The volume of air is at least 20% of concrete volume. The foam concrete possesses high ...

Get Price

Concrete Placement - Basic Civil Engineering

30/06/2019  Before Concrete Placement: Rebars should be cleaned well to remove the dusts with the wire brush or cup brush and check all the bars and drops and any holes are provided accordingly according to the drawings. And the lapping of bars, cover blocks and stools should be ensured before placement of concrete.

Get Price

Concrete Placing - Mo Civil Engineering

The placing method will depend on the quantity of placed concrete and available space and equipment, if the concrete placed directly from the mixer, a small chute shall be used to avoid segregation of concrete. if the pump used to place concrete, pump hose

Get Price

Concrete Workability - Mo Civil Engineering

Mo Civil Engineering Menu. Concrete Workability. Concrete workability is a property of concrete determining the ease of mixing, placing and compacting concrete with minimum loss of homogeneity. Factors affecting workability W/C: increasing of water-cement ratio will increase concrete workability but it will reduce the strength of the concrete mix. increasing water-cement ration will increase ...

Get Price

Repairing of Concrete Bulging - Mo Civil Engineering

During the placing and compacting of concrete, forms may. Skip to content. Mo Civil Engineering Menu. Repairing of Concrete Bulging. Improper designing and installation of formwork for a concrete member can result in concrete Bulging. During the placing and compacting of concrete, forms may deflect largely in the weak areas. The deflection of forms will cause concrete to expand at this ...

Get Price

Preparing and Placing of Concrete Civil Engineering

Compaction of Concrete: In the process of placing concrete, air is entrapped. The entrapped air reduces the strength of concrete up to 30%. Hence it is necessary to remove this entrapped air. This is achieved by compacting the concrete after placing it in its final position. Compaction can be carried out either by hand or with the help of vibrators. (a) Hand Compaction: In this method concrete ...

Get Price

Cracking of Concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Cracking of Concrete. Concrete crack is very common, and it can occur due to various reasons. The depth and the width of the crack will determine the severity of cracks on concrete members. Shortly after placing and compacting the concrete, the concrete will undergoes a shrinkage. Shrinkage can be defined as a reduction of size due to losing concrete moisture. The ...

Get Price

Concrete Bleeding - Mo Civil Engineering

Mo Civil Engineering Menu. Concrete Bleeding. Bleeding can be defined as a form of the local concentration of water at a specific location, usually at the bottom of coarse aggregate, the bottom of reinforcing steel and at the top surface of the placed concrete, bleeding will adversely affect the concrete by increasing the permeability and this will reduce the strength and durability, permeable ...

Get Price

Foam Concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Foam Concrete. Foam concrete consists mainly of cement, air pores with fillers such as fly ash or sand. Coarse aggregates are not used in foamed concrete. Air pores in foam concrete are formed by agitating air with a foaming agent. The size of air bubbles ranges from 0.3 to 0.4 mm. The volume of air is at least 20% of concrete volume. The foam concrete possesses high ...

Get Price

Curing of concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Curing of concrete. Knowing the dry density of soil or pavement is important to evaluate the degree of compaction achieved during the construction process. A field density test is a common test used to determine the field density of the soil or pavement. The principle of field density test is the replacement of soil excavated materials by the sand, the sand density ...

Get Price

Concrete Placement - Basic Civil Engineering

30/06/2019  The prior checks of the concretes should be carried out just before placing the concrete. Temperature check and slump test are two such tests to be performed. Also, test cubes should be casted for each truck of concrete arrived at site for the purpose of compressive strength test at 7 days and 28 days to ensure the built structure according to the design standards. For big scale projects, pump ...

Get Price

Segregation of Concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Segregation of Concrete. Segregation of concrete will adversely affect the properties of hardened concrete, it will significantly reduce the strength and durability, the separation of aggregate and cement paste know as segregation, cohesiveness is an important characteristic of concrete, cohesiveness determine the ability of concrete to hold all ingredient together ...

Get Price

Concrete Placing - Mo Civil Engineering

The placing method will depend on the quantity of placed concrete and available space and equipment, if the concrete placed directly from the mixer, a small chute shall be used to avoid segregation of concrete. if the pump used to place concrete, pump hose

Get Price

Concrete Workability - Mo Civil Engineering

Mo Civil Engineering Menu. Concrete Workability. Concrete workability is a property of concrete determining the ease of mixing, placing and compacting concrete with minimum loss of homogeneity. Factors affecting workability W/C: increasing of water-cement ratio will increase concrete workability but it will reduce the strength of the concrete mix. increasing water-cement ration will increase ...

Get Price

Repairing of Concrete Bulging - Mo Civil Engineering

During the placing and compacting of concrete, forms may. Skip to content. Mo Civil Engineering Menu. Repairing of Concrete Bulging. Improper designing and installation of formwork for a concrete member can result in concrete Bulging. During the placing and compacting of concrete, forms may deflect largely in the weak areas. The deflection of forms will cause concrete to expand at this ...

Get Price

Preparing and Placing of Concrete Civil Engineering

Compaction of Concrete: In the process of placing concrete, air is entrapped. The entrapped air reduces the strength of concrete up to 30%. Hence it is necessary to remove this entrapped air. This is achieved by compacting the concrete after placing it in its final position. Compaction can be carried out either by hand or with the help of vibrators. (a) Hand Compaction: In this method concrete ...

Get Price

Cracking of Concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Cracking of Concrete. Concrete crack is very common, and it can occur due to various reasons. The depth and the width of the crack will determine the severity of cracks on concrete members. Shortly after placing and compacting the concrete, the concrete will undergoes a shrinkage. Shrinkage can be defined as a reduction of size due to losing concrete moisture. The ...

Get Price

Concrete Bleeding - Mo Civil Engineering

Mo Civil Engineering Menu. Concrete Bleeding. Bleeding can be defined as a form of the local concentration of water at a specific location, usually at the bottom of coarse aggregate, the bottom of reinforcing steel and at the top surface of the placed concrete, bleeding will adversely affect the concrete by increasing the permeability and this will reduce the strength and durability, permeable ...

Get Price

Foam Concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Foam Concrete. Foam concrete consists mainly of cement, air pores with fillers such as fly ash or sand. Coarse aggregates are not used in foamed concrete. Air pores in foam concrete are formed by agitating air with a foaming agent. The size of air bubbles ranges from 0.3 to 0.4 mm. The volume of air is at least 20% of concrete volume. The foam concrete possesses high ...

Get Price

Curing of concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Curing of concrete. Knowing the dry density of soil or pavement is important to evaluate the degree of compaction achieved during the construction process. A field density test is a common test used to determine the field density of the soil or pavement. The principle of field density test is the replacement of soil excavated materials by the sand, the sand density ...

Get Price

Concrete Placement - Basic Civil Engineering

30/06/2019  The prior checks of the concretes should be carried out just before placing the concrete. Temperature check and slump test are two such tests to be performed. Also, test cubes should be casted for each truck of concrete arrived at site for the purpose of compressive strength test at 7 days and 28 days to ensure the built structure according to the design standards. For big scale projects, pump ...

Get Price

Segregation of Concrete - Mo Civil Engineering

Mo Civil Engineering Menu. Segregation of Concrete. Segregation of concrete will adversely affect the properties of hardened concrete, it will significantly reduce the strength and durability, the separation of aggregate and cement paste know as segregation, cohesiveness is an important characteristic of concrete, cohesiveness determine the ability of concrete to hold all ingredient together ...

Get Price