One way to lay curb stones on concrete without using a back support is to use a string line and stakes to create a guide for the placement of the stones. This will help ensure that the stones are laid in a straight line without the need for constant bending over. Additionally, using a rubber mallet to tap the stones into place can help avoid the need for excessive bending and lifting. It's also important to take frequent breaks and use proper lifting techniques to avoid strain on the back. **

Yes, a concrete foundation can typically support a scissor lift. However, it is important to ensure that the foundation is level, stable, and able to withstand the weight and pressure of the scissor lift. It is recommended to consult with a structural engineer or construction professional to assess the foundation and determine if any additional support or reinforcement is needed before using a scissor lift on it. **

Yes, a concrete foundation can support a car lift. However, it is important to ensure that the foundation is thick enough and properly reinforced to handle the weight and pressure exerted by the car lift and the vehicles it will be lifting. Consulting with a structural engineer or contractor to assess the foundation's suitability for a car lift installation is recommended to ensure safety and stability. **

To determine how many kilograms your concrete floor can support, you need to know the thickness and strength of the concrete slab. Typically, a standard concrete floor can support around 250 kilograms per square meter. However, for a more accurate assessment, it is recommended to consult a structural engineer who can evaluate the specific details of your floor and provide a precise weight limit. **

The weight capacity of a concrete floor depends on various factors such as the thickness of the concrete, the quality of the mix, and the reinforcement used. On average, a standard concrete floor can typically support around 250 kilograms per square meter. However, it is recommended to consult with a structural engineer or a professional to determine the exact weight capacity of your specific concrete floor. **

To apply concrete on concrete, the existing surface must be clean, free of debris, and properly moistened. A bonding agent or primer should be applied to the existing concrete to ensure adhesion. The fresh concrete mix can then be poured or pumped onto the existing surface and spread evenly using a screed or trowel. It is important to properly cure the new concrete to prevent cracking and ensure a strong bond between the two layers. **

Yes, it is possible to pour new concrete over old concrete as long as the existing concrete is in good condition and properly prepared. The old concrete should be clean, free of any loose debris, and roughened to provide a good bonding surface for the new concrete. Additionally, a bonding agent may be used to ensure a strong bond between the old and new concrete. It is important to consult with a professional to assess the condition of the existing concrete and determine the best approach for pouring new concrete over it. **

To raise the floor using Ytong aerated concrete blocks, you can start by measuring the area where you want to raise the floor and calculating the number of blocks needed. Then, prepare the surface by ensuring it is clean and level. Next, lay a bed of mortar on the existing floor and place the Ytong blocks on top, ensuring they are level and securely in place. Finally, continue stacking the blocks until you reach the desired height, making sure to fill any gaps with mortar for stability. **