How long does it take for cement to set? How long does it take for cement to set?

This needs to look at the thickness.

Generally, it takes about 1-2 days for cement to fully solidify, of course, cement solidification is related to temperature and maintenance, and it is necessary to water and cure for about a week during the cement solidification period. Generally, the formwork can be dismantled in about 15 days, and the initial setting strength can be reached about 70% after 3 days, and if you want to achieve the final setting effect, that is, to achieve 100% design strength, then it will take about 28 days. Hardening after cement construction is divided into several stages, and the cement begins to enter the process of solidification 5-10 minutes after construction; Solidify outside after 1 hour; It can be coagulated after 6 hours; If you want to harden completely, it will take about 3 days.

If it is a very thick cement wall, it depends on the situation.

Generally, it takes 1 to 2 days for cement to set. If it is in summer, because the temperature is relatively high, the initial condensation is basically 4 to 6 hours, and it takes 1 to 2 days to completely solidify. In addition, with the extension of time, the intensity can be reached at 70% in about 3 days, and the maximum intensity can be reached after 28 days.

Of course, if you just walk temporarily and don't drive, basically two or three days is enough. If you want to be fully operational, you must wait until it is fully cured.

What to pay attention to when using cement.

1. Avoid hardening when damp.

Moisture-proof measures must be taken during the storage of cement, because moisture and hardening can reduce or even lose its original strength. The cement will fail when stored in a normal environment for more than 3 months. If the expired cement is not hardened, the quality should be checked.

If the indicators are met, the resistance level should be reduced by one level for the secondary engineering masonry building mortar or plastering mortar.

2. Avoid exposure to the sun and quick drying.

Cement is converted to concrete, or exposed to sunlight, and when the moisture evaporates rapidly, it also loses strength or even loses strength completely. Before construction, the foundation must be strictly cleaned and thoroughly wetted.

3. Avoid freezing at negative temperature.

If the mixed concrete or mortar freezes, the cement will not be able to hydrate; If the water freezes and expands, the concrete or mortar will be destroyed by dust that gradually deepens from the surface to the inside, so the construction procedure must be strictly followed.

4. Avoid high temperatures and extreme heat.

If it is exposed to high temperature and high temperature for a long time, the solidified mortar layer will lose its strength. In addition, some aggregates can also decompose or swell at high temperatures, and construction personnel must take special care to avoid exposing cement.

The coagulation time is divided into initial and final coagulation. When the concrete first loses plasticity, it is called initial setting, and when the concrete completely loses plasticity, it is called final setting. For ordinary cement, the initial setting is not less than 45min, and the final setting is not later than 10h.

Hello dear! Cement setting time refers to the time when cement begins to harden after mixing, forming a solid. The setting time of cement is affected by a variety of factors, such as temperature, humidity, cement variety, admixture material, etc.

In addition, the setting time of cement is also related to factors such as component size, concrete mix ratio, and working environment. When using cement for building construction, it should be coordinated according to the actual situation, and attention should be paid to controlling the setting time of cement to ensure the quality of construction and the integrity of the hand.