Table of Contents
Methods of Measurements and Units of Civil Construction Works
Particulars of item | Units of measurement | Units of payment |
---|---|---|
Damp proof course (DPC) – thickness mentioned | SQM | Per SQM |
Brick work | ||
1. Brickwork in foundation | CUM | Per CUM |
2. Brickwork in plinth | CUM | Per CUM |
What is DPC measured in?
Damp proof course about 25 mm thickness in cement concrete (1:1.5:3 or 1:2:4) combined with standard water proofing agent is applied evenly to the entire width of plinth level and is measured by multiplying the length of the D.P. course by its width in square metres.
What is thickness of DPC?
DPC above ground level Cement concrete is however, commonly adopted material for DPC at plinth level, 38 to 50mm thick layer of cement concrete M15 (1:2:4 mix) serves the purpose under normal conditions. In the case of a damp and humid atmosphere, a richer mix of concrete should be used.
What is the unit of half brick work?
Generally, the brick work is measured in terms of m³. but in case of honey comb brick work, brick flat soling, half brick wall or partition wall then, it is measured in m².
What height is DPC?
It should be at a height of 150 mm above ground level to comply with Building Regulations. Ideally you should instruct a reputable builder to undertake limited exposure works to check the position of the damp course and ground levels around the property should be reduced to 150 mm below damp course height.
What is the unit of payment for sand filling?
This item is calculated in cft and the unit for payment is Rs. per 100 cft.
What is the unit of earthwork?
Units of Measurement for Payments of Civil Construction Works
Sl. No. | Civil Construction Works | Units of measurement |
---|---|---|
1 | Earthwork: Excavation, filling, cutting, banking | m3 |
2 | Surface dressing | m2 |
3 | Cutting of trees | Number |
4 | Stones: quarrying, blasting | m3 |
Do you put wall ties below DPC?
Do not put ties in the DPC course. They should be installed at 450mm c/s vertically and 900mm c/s horizontally and stagger them so that they are not directly in line from course to course.
What is the ratio for PCC?
What is PCC (Plain Cement Concrete) Calculation?
Concrete Grade | Proportion of Cement : Sand : Stone pieces | Expected Compressive Strength at 28 days |
---|---|---|
M10 or M100 | 1 : 3 : 6 | 10 N/mm2 or 100 Kg/cm2 |
M20 or M200 | 1 : 2 : 4 | 15 N/mm2 or 150 Kg/cm2 |
M20 or M200 | 1 : 1.5 : 3 | 20 N/mm2 or 200 Kg/cm2 |
M25 or M250 | 1 : 1 : 2 | 25 N/mm2 or 250 Kg/cm2 |
Which sand is best for basement filling?
Fine sand should consist of natural sand or crushed stone sand. It should be hard, durable, clean and be free from organic matter etc. and should not contain any appreciable amount of clay balls and harmful impurities such as alkalis, salts, coal, decayed vegetation etc.
Where DPC is not provided?
It should not be provided at the locations of the door openings. The top level of DPC should match with the planned finished floor level. As DPC is cement concrete it should be cured with water for 7 days and after it has dried, a uniform layer of 85/25-grade bitumen should be applied over the surface.
What are the types of DPC?
Different types of damp proof courses
- The electro-osmotic damp proof course.
- The chemical damp proof course.
- Pressure grouting.
- Membrane damp proof course.
- The integral damp proof course.
- Cavity wall damp proof course.
What is full form DPC?
DPC ka full form is damp proof course,it is a layer of water proof material in the wall of building near the ground to prevent rising damp. Damp proof course (dpc) is generally applied at the basement level of ground and plinth which restrict the movement of moisture through the wall and floors.
What is a DPC in construction?
A damp proof course (DPC) is a form of damp proofing installed in a property to prevent rising damp and associated problems.
Can DPC be above floor level?
Unlike timber suspended floors where the damp proof course will be sited below floor level with solid constructed floors the DPC should always be sited above finished floor level and should be visible.
What is RC Chajja?
A chhajja is an overhanging eave or roof covering found in Indian architecture. It is characterised with large support brackets with different artistic designs. Its function is similar to that of other overhangs or eaves in that it protects and adorns entrances, arches and windows from the outside elements.
What is the unit of Distempering on wall?
Distempering Unit= Square Feet, or “sft”. iv. Painting Unit= Square Feet, or “sft”.
How is DPC calculated?
quantity calculation of concrete for DPC of 50 square metre area. For the calculation of dry volume 33% volume is increased so we should multiply cofactor 1.33 in wet volume.
What is the unit of partition wall?
The wall, 100 mm thick, consists of an internal load-bearing structure in vertical and horizontal sections of galvanized sheet metal covered with framed wooden or glass framed modules, 50, 100, 150 or 200 cm wide. The uprights are equipped with adjustable feet for both floor and ceiling.
Where is DPC used?
A DPC layer is usually laid below all masonry walls, regardless if the wall is a load bearing wall or a partition wall. A damp-proof membrane (DPM) is a membrane material applied to prevent moisture transmission.
Is a DPC necessary?
Do you actually need damp proofing?. Many damp proofing companies will try and make you think that “Rising Damp” is a genuine issue within your property, and that you need a new chemical DPC and vertical membrane to stop it. The truth is that you do not need such damaging chemicals applied to your valuable property.
What are the 3 types of DPC?
Different types of damp proof courses
- Electro-osmotic damp proof course.
- Chemical damp proof course.
- Pressure grouting.
- Membrane damp proof course.
- Integral damp proof course.
- Cavity wall damp proof course.
Should you fill the cavity below DPC?
The cavity below DPC should be filled with concrete up to a level 225mm below DPC – otherwise the weight of the backfill either side of the wall can cause the blockwork to collapse inwards on the cavity below ground (unless the foundations are tench fill in which case there will be very little cavity wall below DPC in Feb 2, 2009
What is PWD method called?
Long and short wall method is known as PWD method.
What are the methods of damp proofing?
Methods Of Damp Proofing
- Membrane damp proofing. In this method of damp proofing a water repellent membrane or damp proof course(D.P.C.) is introduced in between the source of dampness and the part of building adjacent to it.
- Integral damp proofing.
- Surface treatment.
- Cavity wall construction.
- Guniting.
- Pressure grouting.