Different type of construction pointing
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Pointing is a manner of completed mortar joint of a wall or comparable structure, generally shaped from cement mortar or lime mortar this is used to defend the joints from atmospheric dealers and additionally to enhance the arrival.
During the pointing manner, brick masonry and stone masonry mortar joints are reinforced and repaired. It is suggested to dispose of the antique mortar joints which have cracked and disintegrated via way of means of hand or energy device and update them with new mortar, ideally of the equal composition.
Due to the issue of detecting faulty points, and there will also be adjoining joints that want repairing, pointing is generally completed in a whole wall or whole structure. In the private layers, it reaches a intensity of 10 mm to twenty mm.
In creation, there are numerous sorts of pointing, such as
- flush factor
- weathered factor
- keyed factor
- V-grooved factor
- beaded factor
- struck factor
- recess factor
- tuck factor
- Motive of Pointing
Due to the motive of putting the mortar joints withinside the proper role now no longer simplest protects them from atmospheric impact however additionally complements the arrival of the wall via way of means of showing their pattern, thickness, colours, and texture.
Some of the makes use of of pointing paintings are as follows:
- Sealing the voids and areas can save you water from moving into joints and inflicting them to decay.
- A well-completed and aesthetically captivating pointing activity reduces normal maintenance.
- At the joints of brick/stone masonry, it offers a robust and dependable bond completing.
- Even in low precipitation regions, it has utility in diverse places.
- Mortar Used For the manner of Pointing
- Lime Mortar
For pointing paintings, lime mortar is ready via way of means of blending fats lime with pleasant sand in identical elements after which grinding the combination very well in a mortar mill.The maximum usually used ratio in lime mortar for pointing paintings is 1:three or 1:2
Lime Mortar is typically used withinside the pointing paintings of:
New systems and homes at the same time as the usage of conventional methods.
In antique homes.
Cement Mortar
Suitable proportions of cement, sand, and water are blended to put together cement mortar. Pointing paintings is typically completed with cement mortar in a ratio of 1:three. To keep away from early putting of the mortar, it need to be used inside half-hour of being prepared.
Pointing may be completed on each new and antique homes.
Surkhi Mortar It includes lime and surkhi blended with water withinside the proper proportions. Pointing generally entails the usage of Surkhi mortar of ratio 1:2. Surkhi Mortar is used for the pointing of antique systems and homes.Varieties of Pointing
Flush Pointing
The mortar is crammed and pressed right into a mortar joint all through flush pointing. A clean end is then executed via way of means of completing the bricks or stones flush with their edges. Lastly, a trowel and directly facet are used to well end the edges.
A trowel or piece of hard material will also be used to wipe over the polished pointing.
There is not anything attractive approximately it.
It is long lasting as it prevents dust, water, and sand from accumulating.
In constructing creation, it's miles one of the maximum not unusualplace sorts of pointing.
Weathered pointing
A weathered factor is finished via way of means of urgent mortar right into a joint, and urgent the tops of horizontal joints via way of means of approximately three-6 millimetres with the pointing device at the same time as the mortar remains fresh. They are sloped from the top of the joint to the lowest of the joint.
The weathering resistance of this form of joint is adequate, as implied via way of means of its call. This form of joint does require a very huge quantity of water.
Keyed Pointing
These keyed sorts of pointing are shaped via way of means of trowel urgent mortar into joints and completing it well with the face of the masonry surface. After that, small-diameter metal squares (6 mm in diameter) are pressed lengthwise into the joint. An arc groove might be shaped right into a mortar joint. Also, the vertical joints might be shaped withinside the equal way.
Keyed mortar is first pressed into the joints then.
Tools or small metal bars are used to shape a semi-round curve kind notch.
There is not anything higher than the arrival of those sorts of pointing.
The maximum not unusualplace utility of keyed pointings is for vertical wall joints, specially the ones which can be superior.
To get greater details, watch the subsequent video tutorial.
Video Source: Civil Study
V-Grooved Pointing (V Pointing)
In many ways, V pointing resembles keyed pointing. In order to create a joint, the mortar needs to be crammed and pressed.
A V form device is used to create the V-formed groove withinside the joint. The call is derived due to the fact the form of the pointing resembles the letter V.
This pointing is typically utilized in ashlar and rubble masonry paintings.
Beaded Pointing
- In Beaded Pointing a metal device with a concave form is used to shape concave grooves in a joint the usage of the mortar pressed right into a masonry joint form.
- The beaded pointing offers the mortar joint an splendid appearance, however it's miles at risk of damage.
- In spite of its appropriate appearance, it's miles an volatile cloth that without problems wears out and is prone to damage.
- Uses of pointing in creation and its varieties
Merits of Pointing
- Some quantity of climate resistance is furnished via way of means of it for bricks and stones masonry.
- Pointing paintings may be used to lessen the access of water thru voids or areas among brick/stone masonry.
- By insulating the cavities with repointing paintings, a wall`s thermal homes may be maintained.
- Joints are averted from cracking and shrinking.
- Using repointing paintings to insulate the cavities of partitions will keep their thermal homes.
- The cement mortar wished for this approach is less.
- In addition, it reduces the risk of the brick wall being similarly damaged.
Demerits of Pointing
- Joint fillings are the simplest programs in which it's miles dependable.
- In the incorrect hands, it does now no longer produce a clean and simple aesthetic appearance.
- Brick/stone masonry might also additionally have defects even after pointing.
- The manner of pointing can't be completed in regions with heavy rainfall.
- Stonework with cracks might also additionally seem spider web-like if pointing isn't always sat well.
- There may be problems portray brick masonry pointing and stone masonry pointing.