What Is Mass Concrete | Properties of Mass Concrete | Advantage of Mass Concrete | Disadvantage of Mass Concrete |How Much Mass Density of Concrete

Mass Concrete:

Mass Concrete Underpinning:

The underpinning technique, often discussed in mass concrete ppt , involves existing footings down to a greater depth where stable soil of a suitable bearing capacity exists A failing section of the building by extending the construction of a new foundation beneath. In a pre-determined sequence, the mass concrete is achieved by excavating individual bases in short lengths. After excavated to the appropriate depth, and before concreting, supervisory staff and building control, inspect the excavation that the ground is free from soft spots, tree roots, etc. The base is backfilled with concrete when the excavation has been approved; shutters are set in position. Between the underside of the footing and the top of the base, the concrete is usually cast to leave a narrow gap. When underpinning is constructed in shrinkable clay, low-density polystyrene is usually installed. Read more

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Properties of Mass Concrete:

Workability. Water Tightness. Durability. Strength. Read more

1. Properties of Mass Concrete: Workability

3. Properties of Mass Concrete: Durability

Mass Concrete Specification:

Portland Cement with Low Heat of Hydration. Pozzolanas. Aggregate. Admixture. Mixing Water. Coolants. Read more

1. Portland Cement with Low Heat of Hydration:

3. Aggregate Use for Mass Concrete:

5. Mixing Water for Mass Concrete:

Mass Concrete Foundation:

How to Mass Concrete Temperature Monitoring?

To monitor the temperature of mass concrete, low heat of hydration cement or blended such as PCC or is are being. To monitoring temperature of mass concrete large size aggregate 75 to 150 mm and high aggregate content up to 80% of total aggregate. Use of ice flakes up to about 70% of mixed water, pre-cooling of mixed water. By circulating very cold water through an embedded thin steel pipe. Leading to heat loss use aggregate having higher thermal diffusivity, which results in a lower maximum temperature. Read more

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Advantage of Mass Concrete:

The solid structures above 80cm are made of mass concrete. The mass concrete frequently contains a large volume of concrete. It's an advantage that the large volume can set in a short time. Another advantage of mass concrete is where large bridge piers, foundation, and such as dams like the massive structure the mass concreting technique is used. In mass concrete, to obtain a durable structure with more economy, mass concrete is used. Another advantage of mass concrete is to restrained volume change associated with a decline in temperature as the heat of hydration is dissipated. To prevent shrinkage, one must have excellent control of early setting the mass concrete intended for a large structure. This is an important advantage of mass concrete. Read more

Disadvantage of Mass Concrete:

The disadvantage of mass concrete is the water-cement ratio reaction; the temperature rises within a large concrete mass. The second disadvantage of mass concrete is the temperature shrinkage is the major problem in mass concrete work. With the use of a large quantity of concrete, the structure construction cost will be increased. This is a common disadvantage of mass concrete. Read more

Mass Concrete:

Mass Concrete Underpinning:

Mass Concrete Specification:

How Much Mass Density of Concrete?

Cold Weather T = [0.22(TsWs + TaWa + TcWc) + TwWw] / [0.22 (Ws + Wa +Wc) + Ww] Hot Weather T = [0.22(TsWs + TaWa + TcWc) + TwWw ¡V 112Wi] / [0.22 (Ws + Wa + Wc) + Ww + Wi] Transportation Temperature Factors (For revolving drum mixers) T = 0.25 (tr-ta) Transportation Temperature Factors (For covered dump body) T = 0.10 (tr ¡V ta) Transportation Temperature Factors (For open-dump body) T = 0.20 (tr ¡V ta) Read more

Advantage of Mass Concrete:

Mass Per Unit Volume of Concrete:

Concrete Volume Weight Chart: Unit Kilogram Pound cubic meter of concrete 2,406.53 kg/m^3 5,305.49 lb/m^3 cubic yard of concrete 1,839.92 kg/yd^3 4,056.34 lb/cu yd cubic foot of concrete 68.15 kg /ft^3 150.23 lb/cu ft Read more

Which Material Used in Mass Concrete?

What Size Is Mass Concrete?

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Concrete Volume Weight Chart:
Unit	Kilogram	Pound
cubic meter of concrete	2,406.53 kg/m^3	5,305.49 lb/m^3
cubic yard of concrete	1,839.92 kg/yd^3	4,056.34 lb/cu yd
cubic foot of concrete	68.15 kg/ft^3	150.23 lb/cu ft

What Is Mass Concrete | Properties of Mass Concrete | Advantage of Mass Concrete | Disadvantage of Mass Concrete |How Much Mass Density of Concrete

Mass Concrete: