An action is not always concrete. While some actions are physical and tangible, such as walking or speaking, others can be more abstract or conceptual, such as thinking or imagining. These abstract actions may not have a physical manifestation, but they still have an impact and can influence our thoughts and behaviors. Therefore, actions can be both concrete and abstract, depending on the context in which they occur. **

You can record action cam videos with sound by using a camera that has a built-in microphone or by attaching an external microphone to the camera. Make sure the microphone is positioned in a way that it can capture clear audio while you are recording. Additionally, you can also use a separate audio recording device to capture sound and then sync it with the video during the editing process. It's important to test the audio setup before recording to ensure that the sound quality is clear and free from any unwanted noise. **

Concrete can be leveled in outdoor areas using a few different methods. One common method is to use a self-leveling compound, which is poured onto the uneven surface and then spreads out to create a level finish. Another option is to use a concrete grinder to grind down any high spots and fill in any low spots with a concrete patching compound. Additionally, concrete can be leveled by using a straight edge or screed to manually level the surface while the concrete is still wet. These methods can help ensure a smooth and level finish for outdoor concrete surfaces. **

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. **

Concrete slabs can be made slip-resistant in outdoor areas by adding texture to the surface. This can be achieved by using a broom finish, exposed aggregate, or by applying a non-slip coating. Another option is to mix a non-slip additive into the concrete before it is poured. Regular maintenance, such as keeping the surface clean and free of debris, can also help prevent slips and falls on concrete slabs in outdoor areas. **

For setting lawn edging stones, garden concrete would be the better option. Garden concrete is specifically designed for outdoor use and is more durable and weather-resistant than concrete screed. It also has better adhesion properties, making it more suitable for securing the edging stones in place. Additionally, garden concrete is often formulated to be more resistant to cracking and shifting, which is important for maintaining the integrity of the lawn edging. **

It is unclear whether the concrete belt was poured with the wrong concrete based on the information provided. To determine if the wrong concrete was used, further investigation would be needed to compare the specifications of the concrete used with the requirements for the project. Factors such as strength, composition, and curing methods would need to be considered to determine if the concrete used was indeed incorrect. **