0
What is the approved location of the construction joints in the raft foundation?
Wiki User
∙ 13y ago
The best location to set the construction joint is less shear force impact.
e.g:In slabs;it is better to locate between the supports.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
The difference between contraction joint and construction joint?
A construction joint in concrete jobs is a joint where a fully set and hard concrete joins a fresh concrete to make a joint. Normally, cracks would occur at this joint because concrete was not cast monolithic. A contraction joint is joint between two concrete edges so formed which allows minute movement between the two edges caused by heat or some other external forces. Usually, contraction joints are also referred to as expansion joints.
Is cracking at joints acceptable after new pour of concrete?
Cracking at expansion joints is always acceptable and is the reason for the joint itself. There are two kinds of cracks, pretty ones and ugly ones! Ugly ones are random cracks where the concrete relieves itself from drying shrinkage in a random location within the slab of concrete which is normally not appealing to the eye. Expansion joints are placed at predetermined intervals within the slab where random cracks are weakened planes in locations where cracking is predicted prior to fresh concrete placement. All concrete shrinks when it dries, the larger the slab, the greater the overall shrinkage. When the tensile strength of drying shrinkage exceeds the tensile strength of the concrete, cracking will occur. Lets just hopes it cracks in a spot where we planned it instead of a location where didn't. By the way, joints should be cut at least 25% of the depth of the slab.
What can be the cause and cure of water seeping up through the wooden joints of a new concrete driveway and this is not occurring at any other driveway in our community?
If you have laid a foundation fairly deep and haven't 'dialed b4 you dig" you might have hit a pipe, if not try removing the joins and finding the source of the problem once the concrete has dried
How many meter expansion joint is given in building construction?
i live in an apertment block it is 150 meters long it has an underground garage.a ground floor a first and second floor.it steps down .as it is going down a hill .how many vertical expansion joints should be in it.it is constructed with re-enforced pillars block work then rendered
Where i use the expansion joint?
Expansion joints are used in various types of structures and systems to accommodate the movement caused by thermal expansion, contraction, vibrations, settlement, or other dynamic forces. They are designed to prevent damage to the structure by allowing controlled movement while maintaining the structural integrity. Here are some common applications where expansion joints are used: **Buildings and Structures**: **Buildings**: Expansion joints are used in buildings to accommodate the movement caused by temperature changes and structural settling. They are often found in floors, walls, ceilings, and facades. **Bridges**: Expansion joints are critical in bridges to allow for the movement of the bridge components due to temperature fluctuations, traffic loads, and seismic activity. **Roads and Highways**: Expansion joints are used in roadways and highways to prevent cracking and damage due to thermal expansion and contraction. They also accommodate the movement caused by heavy traffic loads. **Piping Systems**: **Industrial Pipelines**: Expansion joints are installed in piping systems to absorb thermal expansion and contraction of pipes caused by temperature changes in the fluid being transported. **HVAC Systems**: In heating, ventilation, and air conditioning systems, expansion joints help compensate for the expansion and contraction of ductwork due to temperature changes. **Railways and Transit Systems**: **Railway Tracks**: Expansion joints are used in railway tracks to allow the rails to expand and contract with temperature changes. This helps prevent buckling and warping of the tracks. **Subway and Light Rail Systems**: Expansion joints are used in tunnels and station structures to accommodate the movement caused by ground settlement and vibrations. **Water and Wastewater Systems**: **Water Treatment Plants**: Expansion joints are used in water and wastewater treatment facilities to handle the movement of pipes and structures due to changes in water pressure, temperature, and ground settlement. **Aerospace and Transportation**: **Aircraft**: Expansion joints are used in aircraft components to accommodate the movement caused by changes in air pressure and temperature during flight. **Automobiles**: Expansion joints are found in exhaust systems and other components to absorb vibrations and thermal expansion. **Industrial Facilities**: **Manufacturing Plants**: Expansion joints are used in industrial facilities to allow for the movement of equipment, machinery, and structures due to temperature changes and vibrations. **Power Plants**: Expansion joints are used in power plants to handle the movement of pipes, boilers, and other components caused by temperature changes and pressure differentials. **Marine Structures**: **Harbors and Ports**: Expansion joints are used in dock structures and seawalls to accommodate tidal fluctuations and other dynamic forces. **Shipbuilding**: Expansion joints are used in shipbuilding to accommodate movement in the hull and other components. These are just a few examples of the many applications of expansion joints. The specific type of expansion joint used will depend on the requirements of the structure or system, the type of movement expected, and other factors. Proper design, installation, and maintenance of expansion joints are essential to ensure the longevity and functionality of the structure or system.
Why construction joints are provided?
what are construction joints and movement joints
How make a construction joint?
how construction joints is done?
Where to leave construction joints in RCC slab?
construction joints are leave in RCC Slab one third of span.
Construction joints on walls?
water stop
What has the author Billy D Neeley written?
Billy D. Neeley has written: 'Methods of preparing horizontal construction joints in mass concrete' -- subject(s): Joints, Joints (Engineering), Concrete construction
What is the minimum spacing of construction joints in slabs?
18
What are the two types of joints in construction?
Expansion joints. Butt,lap,half-housed,mortise/tenon and mitre joints to name some common ones.
Are the different classes of joints based on their location?
false
Does popcorn make you retain water?
construction joints in water retaining structure?
Where is construction joints in column?
To avoid reinforcement lapping zone and spliceing zone
Which type of load transfer device is uised for expansion or construction joints?
dowels
Which type of load transfer devices are used for expansion or construction joints?
smooth dowels
