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as per ACI , the ratio between column & beam concrete grades dont exceed 1.4

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How do you waterproof a slab on grade foundation?

Use polyethylene sheet membrane. Prior to concrete placing, cover the entire area with a layer of PE sheet membrane extending the perimeter of slab and up against wall for the depth of concrete.


Are concrete blocks cheaper then a concrete slab?

That's sort of a strange question. A concrete slab is a horizontal surface -- it's meant to be a surface you stand on or build things on. Concrete blocks are usually used for vertical surfaces -- walls. I believe that poured concrete walls are more expensive than concrete block walls. You wouldn't use concrete blocks as a substitute for a concrete slab.


Can a slab on grade be a floating slab?

In laymen's terms, yes. Many people use the terms Slab-on-grade & Floating Slab interchangeably. However, architects, engineers, and construction workers may have a more refined interpretation. Most commonly, a Slab-on-grade construction refers to a foundation in which the a concrete slab (also most commonly thickened at the perimeter) rest directly on grade (aka ground). Where as a Floating Slab foundation refers to a concrete slab resting directly on the grade independently placed within a stem wall (aka foundation wall), which extends down to the depth of the local frost line, running around the entire perimeter. The walls of the building/structure are then built upon this "stem wall". This latter type of construction creates a 'heat bubble' so that the floor is not as subject to the expansion due to frost and secures the structures walls by being supported below the frost line.


Can I use OPC 43 grade cement in M20 grade concrete?

Yes. OPC 43 grade cement can be used to make M20 grade concrete.It can be used to make concrete up to M30 Grade.See related link.


What does a person use concrete polishing on?

Concrete polishing is a technique applied to the concrete slab foundation used as a base in most structures. By making use of the materials already present, this method reduces the ecological impact of construction and provides a striking, low-maintenance floor.

Related Questions

How do you waterproof a slab on grade foundation?

Use polyethylene sheet membrane. Prior to concrete placing, cover the entire area with a layer of PE sheet membrane extending the perimeter of slab and up against wall for the depth of concrete.


How much cubic meter of concrete will use for 1000sft slab?

For a 1000 sqft slab with a thickness of 4 inches, you would need approximately 33 cubic meters of concrete. This calculation is based on the assumption that 1 cubic yard of concrete covers 81 square feet at 4 inches thick.


How do you use slab in a sentence?

Just one more slab of bacon, please... That slab of concrete is sliding dangerously close to the edge of the cliff.


Are concrete blocks cheaper then a concrete slab?

That's sort of a strange question. A concrete slab is a horizontal surface -- it's meant to be a surface you stand on or build things on. Concrete blocks are usually used for vertical surfaces -- walls. I believe that poured concrete walls are more expensive than concrete block walls. You wouldn't use concrete blocks as a substitute for a concrete slab.


What is the recommended thickness for a concrete slab?

The recommended thickness for a concrete slab is typically 4 inches for residential applications and 6 inches for commercial or heavy-duty use.


Can a slab on grade be a floating slab?

In laymen's terms, yes. Many people use the terms Slab-on-grade & Floating Slab interchangeably. However, architects, engineers, and construction workers may have a more refined interpretation. Most commonly, a Slab-on-grade construction refers to a foundation in which the a concrete slab (also most commonly thickened at the perimeter) rest directly on grade (aka ground). Where as a Floating Slab foundation refers to a concrete slab resting directly on the grade independently placed within a stem wall (aka foundation wall), which extends down to the depth of the local frost line, running around the entire perimeter. The walls of the building/structure are then built upon this "stem wall". This latter type of construction creates a 'heat bubble' so that the floor is not as subject to the expansion due to frost and secures the structures walls by being supported below the frost line.


How can I effectively break a concrete slab?

To effectively break a concrete slab, you can use a sledgehammer or a jackhammer. Start by creating a line of weakness by scoring the surface with a concrete saw. Then, use the hammer to break the slab along the scored lines. Make sure to wear safety gear and work in a well-ventilated area.


How to install a 4x4 post on a concrete slab?

To install a 4x4 post on a concrete slab, you will need a hammer drill, concrete anchors, and a wrench. First, mark the location for the post on the slab. Use the hammer drill to create holes in the concrete for the anchors. Place the post in position and insert the anchors into the holes. Tighten the anchors with a wrench to secure the post to the slab.


How can I effectively level a concrete slab?

To effectively level a concrete slab, you can use a self-leveling compound or a concrete grinder to smooth out any uneven areas. Make sure to follow the manufacturer's instructions carefully and use the appropriate tools for the job.


How can I raise a concrete slab?

To raise a concrete slab, you can use a process called slabjacking or mudjacking. This involves injecting a mixture of cement, soil, and other materials under the slab to lift it back into place. This method is often used to correct uneven or sunken concrete surfaces.


How can I effectively break up a concrete slab?

To effectively break up a concrete slab, you can use a sledgehammer or a jackhammer to break the concrete into smaller pieces. Start by creating cracks in the slab with a sledgehammer, then use the jackhammer to break it apart. Make sure to wear protective gear and follow safety precautions while doing this task.


How can I lay a concrete slab effectively and efficiently?

To lay a concrete slab effectively and efficiently, follow these steps: Prepare the site by clearing and leveling the area. Create a sturdy formwork to contain the concrete. Mix the concrete according to the instructions. Pour the concrete evenly into the formwork. Use a screed to level the concrete surface. Finish the surface with a trowel for a smooth finish. Allow the concrete to cure properly before using the slab.