Concrete hemispheres are used to block the passage and parking of vehicles. They belong to the type of reinforced concrete anti-parking guards. Such barriers are distinguished by their strength, resistance to adverse weather conditions, and durability. The production of a hemisphere is carried out using a simple method - the principle of stamping in a standard form is used. They do not spoil the surrounding space.
Concrete hemispheres are barriers that are shaped like halves of a ball.
Installation
The optimal distance between the hemispheres is 2 meters (counted from the center of one product to the center of the other). Install on a perfectly flat area, previously cleared of debris and dirt. The area must be equal to the size of the product.
To install a concrete hemisphere on private territory, there is no need to obtain permits or documents - the owner of the land plot and the building on it is free to do whatever he wants (without breaking the law, of course, and without creating a danger to other people).
Maintenance and care
The concrete barrier element to prevent the passage of vehicles is made of high quality concrete. It is important to find manufacturers with a good reputation who use purified alluvial sand and high-quality cement to prepare the solution. Conscientious manufacturers use additives, plasticizers and other compounds that can increase the technological characteristics of concrete. All kinds of additives improve the properties of the solution and increase the ability to withstand aggressive environments, mechanical stress and adverse weather conditions.
If you plan to install hemispheres as a decorative element, they are painted with facade paints that are resistant to precipitation. Concrete fencing structures do not require much maintenance. Periodic cleaning of dust and dirt is enough for them. The surface is cleaned with a stiff brush, which is moistened with soapy water. In order for the hemisphere to serve for a long time and not lose its characteristics, the surface of the element should be painted every few years.
Installation of concrete hemispheres
Installation of hemispheres does not require “dirty” work that damages the surface of the sidewalk or road surface. The wear-resistant material of the hemispheres is resistant to physical and climatic influences for many years, without changing their appearance.
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Fastening to the surface is carried out using a reinforcing pin fixed at the base of the hemisphere. This allows you to install the hemisphere motionlessly without “complicated” work involving concreting.
After dismantling the hemisphere, the appearance of the installation site remains the same as it was before the installation of the fence.
Where can I buy
You can purchase a parking restrictor from specialized companies that produce various concrete products according to standard sizes or individual orders. Before placing an order, it is advisable to study the production conditions, reviews of the company’s products - all concrete elements must be created from a solution of a certain brand of high-quality cement, using special equipment, with strict adherence to technology.
Proof of product quality is the results of concrete research in laboratories, the presence of all documents confirming the product’s compliance with established standards, norms and rules specified in GOST, SNiP, TU.
Once you are convinced of the quality of the company’s products, you should pay attention to prices, additional services (delivery, loading/unloading of spheres on site, etc.), conditions (companies often provide discounts to wholesale buyers).
Thus, prices may differ in Moscow and the regions, but it is usually more profitable to buy from companies located close to the facility (delivering spheres from Moscow to St. Petersburg, for example, is unprofitable, at least due to the cost of fuel and employee working hours).
Advantages of concrete hemispheres
Fencing items such as concrete hemispheres fit perfectly into any architectural ensemble. Therefore, they can be installed both in historical areas of the city and in modern ones. The streamlined shape creates a feeling of harmony.
Thanks to a special manufacturing technology using high-strength materials, such structures cannot be damaged, they are not afraid of harsh weather conditions - they can withstand both severe frost and scorching sun. The following options are possible:
· hemisphere with pin. The presence of reinforcement ensures reliable fixation. Used on asphalt, concrete, granite, tile and marble surfaces;
· unreinforcement-free hemisphere. Perfect for installation on unpaved surfaces, lawns and sandy surfaces;
· the size of the anti-parking device may vary depending on the needs of the customer;
· If desired by the customer, the hemispheres can be painted. This will help make them more visible. A shade that matches the prevailing colors of the surrounding buildings is often used to achieve the integrity of the composition.
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Most often you can find concrete hemispheres at the demarcation point between the pedestrian zone and the roadway. This is done for the safety of pedestrian movement, to eliminate parking in squares, pedestrian streets, parks and public gardens.
To install on the sidewalk you will need 2-3 concrete hemispheres. It is advisable to use products with a pin so that they cannot be moved. And if you fix the reinforcement into a concrete base, the structure will be super strong and completely motionless.
This method can also protect lawns and flower beds from vehicle parking, which will undoubtedly save green areas from damage.
Concrete hemispheres in yards - is this legal?
✅ Multi-storey neighborhoods or retail spaces are often equipped with hemispheres made from concrete. In some situations, they appear quite unexpectedly, which entails a blocked passage to the parking lot or to the entrance. Therefore, many may ask a completely logical question: can the placement of similar barriers be considered legal? Why do they appear in principle? Let's figure it out.
Concrete hemispheres Concrete hemispheres
What is a hemisphere?
✅ Concrete hemispheres are mobile elements that block the movement of a car onto a specific part of the road surface. They are placed to improve safety for people and property in areas where cars pose a certain danger. Such concrete fences are used, for example, on a playground, sidewalks or in a house area. They can also be located near government or commercial institutions.
✅ Due to concrete objects, the passage and concentration of cars is blocked. With such devices, the path for cars is blocked when it is necessary to reduce the likelihood of a car hitting people. In addition to this, with the help of such concrete barriers, the amount of exhaust gases and noise is reduced.
Why are concrete hemispheres placed in courtyards?
✅ Often in neighborhoods there are various items that protect against cars. Such a list may include: flowerpots with flowers, car tires, or concrete slabs. But only concrete hemispheres are usually considered the most convincing and safest limitation for machines. They stand out:
- Good resistance to destruction;
- They are not afraid of being hit by a heavy vehicle;
- Safety for pedestrians;
- Easy installation;
- An appearance that can even decorate the yard.
✅ Such concrete hemispheres can be found with different design heights, which can help protect the space from a large vehicle.
Concrete hemispheres Concrete hemispheres
✅ If we take microdistricts, then to protect the area from cars they resort to such devices. Then children can play near the entrance without risk, and passers-by will not worry about the situation around them. In addition, it is worth noting that vegetation is protected with the help of such concrete fences. Moreover, there is not only protection against collisions, but also against exhaust gases.
Tips for maintenance and care
✅ As for the fencing object, which has a hemispherical shape, it is not made from ordinary concrete. High-quality concrete is used here. It is advisable to find a manufacturer that has an excellent reputation. This is very important, since a good manufacturer uses purified alluvial sand and high-quality cement to create the mortar. Speaking for diligent manufacturers, they use additives, plasticizers and other compounds that increase the technological performance of concrete. Using all kinds of additives, the quality of the solution and its ability to withstand aggressive environments, as well as mechanical influences, are increased. At the same time, high-quality concrete hemispheres are not afraid of different weather conditions.
✅ When planning the installation of hemispherical objects for the purpose of a decorative base, they are painted using facade paints that are resistant to precipitation. Such hemispheres eliminate the need for serious maintenance. They only need to be occasionally cleaned of dust and dirt. As for the surface, it is cleaned using a stiff brush, which has previously been soaked in a soap solution. For a longer service life of a concrete fence, it is necessary to paint the surface of the hemisphere every few years, then it will not lose its functionality.
Concrete hemispheres Concrete hemispheres
✅ Those who are thinking about such barrier concrete objects should know that they can be bought either ready-made or made yourself if you have the desire, time and everything necessary. For example, you need to take care of a concrete mixer, a hemisphere mold and the materials that will be needed. If we talk about the form itself, which is needed for concrete objects, it is made from high-strength plastic. Its thickness should be within 0.2-0.3 cm. Such forms can be used repeatedly.
✅ To make concrete hemispheres yourself, you need to initially make a concrete solution. It is necessary to mix sand with cement and crushed stone in a special ratio, and then pour it. The resulting solution is poured into molds and must be kept for about 24 hours.
Afterwards, the fence is removed from the mold and left to dry.
The solution is considered stronger after 28 days.
Can the installation of such concrete hemispheres be considered legal?
✅ If similar concrete barriers have been placed near your place of residence, preventing the passage of cars, you must notify the HOA manager or the Criminal Code about this. The issue of placing such fences must be decided at a general house meeting. If it has already passed, you must be shown the minutes of the meeting where the decision was made. It is prohibited to install concrete hemispheres on your own, bypassing the general building meeting. But if this has already happened, you can safely insist on dismantling such restrictions.
How often do you see such concrete fences in the courtyards of houses? How do you feel about this? Do you think they are actually necessary or is it a waste of money? Share your thoughts in the comments below. Also, don't forget to give a thumbs up and subscribe to the channel.
Anti-parking system installation process
To achieve a strong fixation of the structure on the site, there are certain rules for installing anti-parking devices. First of all, you need to make sure that the surface is free of foreign objects and is perfectly flat.
If there are holes or bumps, leveling must be done. It may be necessary to apply patches or lay a new road surface. When the surface becomes suitable, work must be performed in the following sequence.
2. Using a puncher, a hole is made corresponding to the length of the pin, into which the solution is poured and the reinforcement with a hemisphere is inserted.
Top 13 best barefoot exercises and training scheme
Squats on a hemisphere
- Slowly place your feet hip-width apart, keeping your balance on the hemisphere (on the soft part).
- Squat your hips until they are parallel to the floor, smoothly move your pelvis back, maintaining balance. Keep your hands in front of you.
- Exhale and slowly rise up.
Perform the exercise 15-25 times.
Option 2: Inverted Bosu Squats
turn the hemisphere upside down and repeat the technique.
Perform the exercise 15-25 times.
Attention! This option is only for those who are prepared, as it requires more stabilization due to instability.
Backward Lunges
- Stand with both feet on the hemisphere.
- Take a step back with your right foot, placing your toe on the floor.
- Exhale, push off with your front supporting leg and step back, maintaining your balance.
- Change your leg.
Alternate movements on each side for 15-20 lunges.
Side Lunges
- Standing on a hemisphere, feet together.
- As you inhale, take a step with your right foot to the side, placing your foot on the floor. At the bottom point, perform a squat with your knees bent. The thigh of the supporting leg is parallel to the floor.
- Exhale – reverse step on the barefoot.
- Repeat the movement on your left leg.
Alternate 15-20 lunges on both legs.
Dynamic barefoot plank
- Place your palms on a hemisphere shoulder-width apart. Stand in a plank position, controlling the position of your lower back.
- Keeping your abdominal muscles tense, alternately lower yourself onto your forearm with each hand, and straighten your elbows back, lifting up onto your palms.
- Alternate the movement at a dynamic pace without holding your breath.
Perform the exercise for 30-60 seconds.
Push ups
- Place your palms narrowly, shoulder-width apart. Stand in a plank position; to make the technique easier, you can rest your knees on the floor.
- As you inhale, bend your elbows, bringing them closer to your torso, and aim your chest toward the top point of the bosu.
- Exhale and do push-ups.
Do 10-15 push-ups.
Inverted hemisphere push-ups
- Place the hemisphere on the floor, placing your palms along the edges of the platform.
- Slowly do push-ups as described in the technique above.
Do 10-15 push-ups.
Gluteal bridge
- Lying with your back on the mat, place your feet on the hemisphere, bending your knees.
- Place your arms along your body.
- As you exhale, lift your buttocks off the floor, rising to the “half-bridge” position without lifting your shoulder blades from the floor. The torso and hips form a straight line, without arching in the lower back.
- Inhale – slowly lower your pelvis to the floor.
Repeat the movement 15-25 times.
Glute bridge: single leg pelvic lift
- Place one foot on the center of the hemisphere, and keep the other straight in weight;
- push your pelvis out 15 times, then switch legs.
You can also turn the sphere upside down.
Burpee with Bosu
The burpee variation is suitable for beginners.
- Stand facing the hemisphere, perform a squat and place your palms under your shoulders on your bare feet.
- As you inhale, jump into a plank position, keeping your spine straight.
- As you exhale, jump back to the bosu platform and return to a vertical position with another jump.
Repeat the cycle 10-15 times.
Hyperextension on barefoot
- Lie on your stomach on the hemisphere. Keep your knees straight, resting on your toes.
- Place your hands behind your head, keeping your spine straight and your chest hanging over the floor.
- Inhale – tilt your body down towards the floor, lengthening your spine.
- Exhale and straighten your torso without arching your lower back. Keep your abdominal muscles tense and perform the exercise with a small amplitude.
Do 15-25 reps.
Fold
- Sit with your buttocks on the hemisphere, maintaining balance and tension in your abdominal muscles, lift your heels off the floor, bend your knees, and lean your body slightly back.
- Opening up like a book, straighten your legs at the knees, lowering them lower to the floor, and also move your body back, without bringing the body line to the horizontal. Keep your hands in front of you, and keep your abs in constant tension.
- Exhale as you fold, returning your bent knees to your torso.
- To make this option easier, you can hold the exercise machine with your palms.
Perform 20-30 crunches.
Oblique twists on a hemisphere
The exercise is performed like a regular bicycle.
- Sitting barefoot, hold your hands behind your head, your legs overhang, bending them at the knees.
- As you exhale, twist diagonally, aiming your right elbow towards the opposite knee.
- Inhale: Return to the starting point and twist in the opposite direction.
- Perform crunches dynamically without relaxing your abs.
Perform 20-30 repetitions.
The set of exercises is designed to work all muscle groups evenly. Perform the program in a circle, moving from exercise to exercise without pauses, at the end of the cycle, rest for 2-3 minutes, repeat 3 circles.
