How to make precast concrete slabs

For hundreds of years, humans have been using concrete in many different types and configurations. Even the ancient Romans had their own concrete recipe that they used to build some of their aqueducts and other structures that are still mostly visible today. However, nowadays, there are newer, more resilient ways to make concrete structures and that’s with precast concrete that’s been specially poured in a factory to exacting specifications to make it last longer and be stronger than ever before.

The Problems With Poured Concrete Are Inconsistencies

When concrete is poured outside in the weather there are lots of variables such as the temperature, humidity, rain, and the form construction. On the other hand, if concrete can be poured inside to specific standards with the right tools, recipe, and experience, then it can be much stronger and last longer. Precast concrete beams can be made far better and then delivered to a building project or bridge and be expected to last hundreds of years into the future.

When you pour a precast concrete slab it will tend to get stronger over time and have a much higher load capacity than one poured on site. In addition to that, precast concrete panels can be made in many hundreds of different sizes and shapes to fit any project with weep holes already inserted for water drainage. Alternatively you can always cut the weep wholes ( visit this concrete cutting website for more info) . Since the weep holes are engineered into the panel they don’t create a weakness and therefore the panel is much stronger.

Plus, since the panels can be made in exact sizes they can be fit together perfectly once they reach their final destination without delay. The faster installation is a labor saver that pays for itself over and over again. There is less cutting for wiring and plumbing since most of the channels can be built right into the slabs. For the most part, a home or other structure that’s made with all precast concrete slabs and other masonry products and services. Should last for several hundred years with almost no maintenance, a little cleaning, and very few cosmetic repairs.

If you’re thinking of a project that could possibly be made from precast slabs you should get an estimate to see how much money you could save over the long run. The last thing you want is to install the precast and have to demolish or cut it out. If this does happen we recommend

Since the original price is usually reasonable, delivery is on time, care and maintenance minimal, plus fit and finish optimal, there is a lot of money to be saved.

How to make precast concrete molds

There are many projects that can be facilitated using precast concrete molds. Use them to create steps or balustrades for a building. Create accent pieces like birdbaths or sculptures and anything else you can think of. Using molds made from materials poured right on site makes it easy to create those pieces for immediate use. You can even make multiple castings without delay. Here are the steps to making precast concrete molds.

The first step is to seal any holes in the items you are using as casting molds. You might use caulking or any other sealing agent. Let it dry and add a second application. Let the agent go over the bucket or container you use to form the mold. Latex or rubber is ideal and often used because it is resistant to abrasion and tears.

You will create your mold’s pattern by placing objects in the bucket. Be sure to leave a gap between each object in your mold. Overlapping gaps lead to weakened areas of the mold which could make it tear. After you have arranged your objects you will pour the rubber or latex over the top of them. Let the rubber or latex dry completely.


The ideal solutions for the casting are found at specialty mold rubber manufacturers. A mixable form makes it even easier to cast your mold. Pour enough of this mixture over the objects to cover them, too, but do not cover them completely. Let the rubber or latex dry thoroughly.

This step should take just one day. Once the rubber has dried you can remove your mold right out of the bucket or container. You will know that it is completely dry if it slides right out. There are some molds that require the help of a razor blade or a utility knife to cut the mold free. There will be some overlap on your mold. Trim it away.

The last step to creating the precast mold is spraying it with a concrete releasing agent. Pour the cement over the mold and let it dry. Your objects will be ready for use, and the mold will be ready for another casting right away. These molds last for a long time and handle many castings which allows you to save time, effort and money. You can make any precast concrete mold you choose right on site so be imaginative.