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Advantages And Disadvantages Of Cement Concrete Roads: What You Need To Know

The Constructor

Cement concrete roads are one of the most popular and trusted road construction and repair options. They are a durable, strong, and cost-effective solution that has been used for decades to achieve a smooth, even road surface. But, just like any other type of road, cement concrete roads have advantages and disadvantages.

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Concrete Recycling

The Constructor

Concrete Recycling While at present mostly recycled into road subbase, the amount of demolished concrete in Japan is expected to increase rapidly and.

Concrete 223
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TEMPERATURE EFFECTS ON CONCRETE

The Constructor

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.

Concrete 235
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TYPES OF CRACKS IN CONCRETE BEAMS

The Constructor

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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REDUCING DRYING SHRINKAGE IN CONCRETE

The Constructor

Upon wetting, concrete tends to expand. This type of shrinkage is caused by the loss of moisture from the cement paste constituent, which can shrink by as much as 1% per unit length. Unfortunately, aggregate provides internal restraint that reduces the magnitude of this volume change to about 0.05%.

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REINFORCEMENT COVER AND PRE-CONCRETE CHECKS

The Constructor

From the diagram above, we can see how the process unfolds. When the binding has set, the steel bars are placed into position.

Concrete 250
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STRUCTURAL USES OF PRECAST CONCRETE

The Constructor

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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