Can you use the prefabricated cover after 24 hours 600cmx1080cmx80cm. The gutter is 600cm wide

Prefabricated cover plate is a commonly used building material, which has the advantages of high strength, good durability and easy installation, so it has been widely used in construction projects. The use time of prefabricated covers generally needs to be determined on a case-by-case basis.

For prefabricated covers with a size of 600 cm x 1080 cm x 80 cm, they can generally be used about 24 hours after installation. This is because prefabricated covers take a certain amount of time to cure and stabilize after installation to ensure that they have sufficient strength and stability. Therefore, it is necessary to wait for a certain amount of time before using a prefabricated cover to ensure that it can be used properly.

In addition, if the width of the drainage ditch is 600 cm, it is necessary to pay attention to the design and construction of the drainage ditch. Drainage ditch is a very important part of construction engineering, and its design and construction quality directly affects the drainage effect and service life of the building. Therefore, when carrying out the design and construction of drainage ditches, it needs to be carried out in strict accordance with relevant codes and standards to ensure their quality and safety.

At the same time, the drainage ditch also needs to be inspected and maintained regularly to ensure its normal operation and use.

It depends on how many sizes of cement you use, generally written on the bag, the following is the number of cement, and the setting time is used as a reference 300 (325) 14 days 400 (425) 7 days 500 (525) 3 days 600 36 hours 700 18 hours 800 8 hours 1000 2 hours 1200 30 minutes.

If it is brickwork, the amount of work is as follows:

1. Manually dug trench earthwork: v = 5000 * ( M32, C15 concrete cushion: v = 5000 * (

3. M5 cement mortar brick ditch: v = 5000 *, about equal to 318000 red bricks: 2 cement mortar plastering: s = 5000 * (

5. According to your local labor and materials, you can basically calculate the cost.

First of all, open ps and select New File, and then there will be a settings dialog with a lot of settings There is a unit setting option, which has pixels, inches, or something, just set the unit to centimeters.

Enter the numbers in the width and height fields

If you want to do large-scale advertising spraying, it is recommended to increase the resolution by more than 150, otherwise it will be blurry.

No way. The file you built is too large. 600x150cm a resolution adjustment of 150 has been on. Now the computer can't be moved for a single shift. You have to adjust it to 150. It depends on your computer configuration. Advertising inkjet does not require high resolution.

First run ps and then I ctrl+n on the line If you spray it, the resolution of 120 is enough!!

You can set it up there when you create a new document.

So it has to be equipped with a computer of 10,000 yuan.

………Haven't you already set the width and height?