Tips to Prevent Concrete from Cracking

Cracking can be inevitable in concrete surfaces regardless of how many provisions you make. However, there are certain ways to reduce the risk of cracking in concrete. Firstly, it is important to know exactly how cracks are formed. After knowing the causes, one can hope to prevent cracks from happening in the first place. Concrete Brisbane surfaces may then be less prone to cracking and eventual breakage.

Common Reasons Why Concrete Cracks

Following are some reasons to explain concrete cracks which can help you better protect your concrete surface.

  • Shrinkage is the biggest cause of concrete cracks. This happens when the concrete mould is first poured into the surface. As the mould hardens, it can shrink by 1/8 inch. This phenomenon is almost unavoidable, even in newly constructed surfaces.
  • A low level of tensile strength can result in internal tensile stress which again paves the way for cracking.
  • If the concrete mix has disproportion between concrete and water, then the possibility of cracks increases. A better mixture can help the surface endure any cracks.
  • An improper sub-grade preparation and curing process can create cracks. In case the sub-grade doesn’t ensure a solid base, the cracks will definitely form. Concrete suppliers Brisbane can help you in ensuring proper sub-grade prep.

5 Tips to Prevent Concrete Cracks

Since you now know the main reasons for the cracking of the concrete, it’s time to know some important tips to prevent concrete cracks. Let’s check them out below:

1) Add Contraction Joints:

The cracks formed on Concrete surfaces form without a pattern and thus, proper care must be exercised in the construction process to protect the concrete and prevent an overdose of cracks.

This can be ensured by using Contraction joints. These joins are pre-made cracks which are installed in concrete slabs to pacify the pressure place on the concrete. These joints also give slabs more flexibility and hence reducing the risk of crack formation. Concrete prices Brisbane can help you understand the cost of this joint.

Contraction joints are usually very affordable and can be built out of plastic or hardboard strips. To make the most of these joints, these must be placed at apt depth.

2) Cure the Concrete Properly:

Properly cured concrete has a lesser chance of developing cracks. Therefore this step is highly important. The curing process is crucial and it takes an entire week to complete the process of moist curing. The curing must be given due time, as the longer the curing happens, the more it will be ensured against cracks and wear and tear. Concrete delivery Brisbane can simplify this process for you.

3) Seal Joints:

This step is not mandatory; however, it is definitely beneficial if you want to secure your concrete slabs from wear and tear. Seal joints prevent damage caused by water infiltration and thus preventing the crack from forming.

4) Don’t Overload Surfaces:

If you add too much weight and overload the surface, then your concrete will be the first to crack. Hence, be aware of the weight limits, especially during the curing process.

Bottom Line:

It is not easy to pull off an entire job of installing a concrete slab if you have little to no experience in this field. Services in Australia like Reocrete concrete Brisbane, can be of great assistance.

Concrete Rebar Reinforcement: When is it Necessary?

Reinforcement can significantly resist the tensile stress in a particular area of concrete. In its absence, cracks may appear. The main purpose of providing reinforcement is to resist the internal tensile. It is mainly provided in compression areas to enhance the capacity of compression and ductility. The other purpose of providing concrete rebar reinforcement is to bring down the long term deflection which helps in increasing the flexural capacity of the beams. Reinforcing mesh Brisbane plays a crucial role in boosting the life of structures.

What is Rebar?

Rebar has emerged as a crucial constituent of reinforced concrete. It is generally manufactured with the help of ridged carbon steel as the ridges help in offering frictional bond to the concrete. Rebar is cast into concrete to convey tensile loads on a particular structure, as concrete may be very strong but it lacks strength in tension.

Reinforcement helps in preventing excessive cracking of structures often caused due to changes in temperature or shrinkage in the controlled structural elements.

Role of Reinforced Concrete and Its Growing Importance

The importance of reinforced concrete has been surging with every passing day as it works really well in tension or compression. We have already witnessed that concrete is a composite material which remains effective in compression but not in tension. And, the situation can be tackled by casting wet concrete around the robust steel reinforcing bars supplied by renowned steel suppliers Brisbane. As soon as the concrete gets hardened around the steel bars, the outcome is new reinforced concrete popularly known as reinforced cement concrete.

Advantages of Reinforced Cement Concrete

The main advantage of reinforced cement concrete is that it remains highly effective and solid both in tension or compression, as the concrete provides the compressive power by resisting the squeezing and steel offers tensile strength by resisting bending or stretching. The outcome is reinforced concrete uses one composite material inside the other one. Concrete becomes matrix and steel bars offer the reinforcement.

Why Steel Bars Are Preferred Over Other Materials to Reinforce Concrete?

Generally, we could have used any kind of material to reinforce concrete but here we will answer why steel bar Brisbane are given preference over other materials? We use steel bars because they have the strong power of expanding and contracting in any weather condition whether it is too hot or too cold in the similar proportion of concrete. Due to this, it will not cause any crack to concrete which surrounds it in comparison to any other material which might have cracked if it expanded or contracted.

Types of Reinforced Concrete

There are various types of reinforced concrete available in the market which may include steel fiber, glass fiber, engineered cementations composite, etc.

  • Glass fiber reinforced concrete: It has been in use for the last 25 years for concrete reinforcement apart from steel. Various structures have been using glass fiber reinforced concrete which may include bricks and ceramic tiles.
  • Steel fiber reinforced concrete: It can significantly reinforce concrete by resisting the tensile cracking. It can also easily withstand light and heavy loads.
  • Engineered Cementitious Composite: Popularly known as bendable concrete, it is claimed that it is 40 percent lighter than normal concrete. It can easily self-repair the cracks by the reaction caused by carbon dioxide and rainwater.

Conclusion:

Concrete rebar reinforcement plays a vital role in bringing down the number of cracks which may appear in concrete surfaces and mesh has emerged less expensive than rebar reinforcement. You can buy top quality steel reinforcing mesh Brisbane from leading producer who can offer you top quality products at competitive prices.

5 Essential Things You Need to Know When Ordering Premixed Concrete

Building anything, whether private or commercial, has its own value and responsibility. Concrete is one of the most essential components of construction and pre-mixed concrete has made it really easy to acquire the material for direct application. But there are certain things you need to know while ordering premixed concrete. Here are the 5 most essential ones:

1. Estimate the Quantity

Unlike regular concrete, pre-mixed concrete cannot be stored for later use; any leftover material would go in waste. Thus, it is important to estimate approximately how much concrete you would need. This depends on various factors like size of site and thickness of the slab, while also accounting possible wastage of material and over-excavation. Even a little extra concrete delivery Brisbane would incur a lot of money. So it is important to order an amount that leads to neither wastage nor shortage.

2. Place Advance Orders

It is always advisable to place orders well in advance, maybe as early as a week. Pre-mixed concrete is subject to availability so it cannot be made on short notice; urgent requirements are often declined or carry extra charges. Inability to acquire concrete when you need it can even lead to halting of construction work, thus costing your time and money. So it is wise to order premix concrete Brisbane in advance to avoid any hassle.

3. Specify the Details

While placing the order, you should provide all the details regarding the concrete you would require. Concrete comes in different strength grades depending upon the use, and each grade has different availability and cost. The slump size must also be decided since it is vital for the workability and quality of concrete; modifying the slump later can compromise the concrete quality. Aggregate size usually follows a default 20mm, so you should specify if you require anything different. All of these details impact the concrete prices Brisbane suppliers would offer. Getting the details right will save you future issues.

4. Discuss Whole Procedure

Apart from the concrete specifications, the method of using it also plays a role. Both the method of placing concrete and rate of concrete replacement are important details which must be conveyed while you order premixed concrete. These details play a role in deciding how the concrete would be mixed. Most concrete suppliers Brisbane ask for these details anyway while you place an order.

5. Keep an Eye on the Order

Once all details have been discussed and finalised, you can place the order. But even after this, you should track your order and take updates about the progress. In some rare cases, your order might be misplaced by the company, which would only result in your loss. It is wiser to keep a regular eye on the order and see if it is progressing as planned.

Conclusion:

Pre-mixed concrete is one of the many ways which have made construction easier today. But convenience shouldn’t mean carelessness. By taking the right precautions you can ensure that you get the right product exactly when you required it.