The raw material cement used by the brick machine should be rechecked in batches for strength and stability before use. Inspection batches should be of the same manufacturer and numbered batch. When there is doubt about the cement during use or the cement has been out of the factory for more than three months (fast-hardening Portland cement for more than one month), the test should be reviewed and used according to the results. Different types of cement cannot be mixed. The mortar sand used by the non-burning brick machine must not contain harmful substances. The mud content of the sand used in mortar should meet the following requirements. For cement mortars and cement mixed mortars with a strength grade of not less than 1, it should not exceed %). For cement mixed mortars with a strength grade of not less than 100%, it should not exceed %. Artificial sand, mountain sand and extra-fine sand should be The adaptation can meet the technical requirements of masonry mortar.
Dehydrated and hardened lime paste must not be used when preparing cement-lime mortar by the brick machine. Slaked lime powder must not be used directly in masonry mortar.
The water used for mixing mortar should comply with the current industry standard "Water Standard for Concrete Mixing".
The mix ratio of masonry mortar is determined through adaptation. When the combined materials of masonry mortar are changed, the mix ratio should be re-determined
When cement mortar should be used instead of cement mixed mortar during construction, the grade strength should be re-determined. .
Cement brick hydraulic press construction equipment