Question

ПОМОГИТЕ, ПОЖАЛУЙСТА!:) Перевести на русский All types of cement shrink during setting. In a normal concrete the amount of this shrinkage will depend both on the proportion of cement in the mix and the quantity of mixing water employed. Provided enough water is present to enable the chemical action of setting to take place, then the smaller the amount of water the less shrinkage there will be. The type of aggregate used has an appreciable effect upon both the amount of water and the amount of aggregate that can be mixed with given quantity of cement. Strength and durability of concrete are linked properties in that they are both associated with the low water-cement ration. In addition to the proportion of cement and the water cement ratio of a cement product, the method of curing will also affect the amount of shrinkage. Normally, the slower the drying the less shrinkage there will be. All cement products are liable to a considerable shrinkage during setting and hardening.

Answer 1

 All types of cement shrink during setting.
In a normal concrete the amount of this shrinkage will depend both on the
proportion of cement in the mix and the quantity of mixing water employed.
Provided enough water is present to enable the chemical action of setting to
take place, then the smaller the amount of water the less shrinkage there will
be. The type of aggregate used has an appreciable effect upon both the amount
of water and the amount of aggregate that can be mixed with given quantity of
cement. Strength and durability of concrete are linked properties in that they
are both associated with the low water-cement ration. In addition to the
proportion of cement and the water cement ratio of a cement product, the method
of curing will also affect the amount of shrinkage. Normally, the slower the
drying the less shrinkage there will be. All cement products are liable to a
considerable shrinkage during setting and hardening.

Answer 2

Все виды цемента усаживаются в процессе твердения. В обычном бетоне количество этого усадочного деформирования зависит как от соотношения цемента в смеси, так и от количества воды, используемой при перемешивании. При наличии достаточного количества воды для проведения химических процессов твердения, чем меньше воды, тем меньше будет усадка.

Тип используемого заполнителя (агрегата) также оказывает существенное влияние как на количество воды, так и на количество агрегата, которое можно смешать с заданным количеством цемента. Прочность и долговечность бетона связаны между собой, так как они оба связаны с низким коэффициентом водоцементного отношения. Помимо соотношения цемента и воды, метод укрепления также влияет на количество усадки. Обычно, чем медленнее происходит высыхание, тем меньше будет усадка.

Все цементные изделия подвержены значительной усадке в процессе твердения и укрепления.