It is influenced by the quantity of aggregate and cement type.

I believe both Aggregate type and type of cement has a significant effect on shrinkage in concrete. The drying shrinkage of the aggregate increases the shrinkage of the concrete. Drying shrinkage is dependent upon several other factors.

I think the types of cement and aggregate effected on the shrinkage stress

Shrinkage mainly depends on the cement paste. However, the general assumption that the aggregate acts as restrain for the cement paste with no shrinkage by itself is not totally accurate. Depending on the aggregate type it may contribute a significant amount of shrinkage by itself. For instance concretes with lightweight aggregates have a relatively smaller shrinkage compared to those with normal aggregates. This is despite the fact that lightweight aggregates have lower modulus of elasticity.

Of course the type if cement has a huge effect on the shrinkage in concrete, with the tricalcium aluminate (C3A) and alkali content are governing factors affecting shrinkage. However, aggregates also have a restraining effect on shrinkage. If the aggregates shrink more than the cement paste, concrete shrinkage will increase significantly. But, If the aggregate shrinks less than the paste, then the aggregates will restrain shrinkage and the shrinkage of the concrete will decrease by a rate depending on the aggregate volume fraction.

Moreover, the shrinkage in concrete depend on other external factors such as the air temperature, relative humidity in addition to member geometry, as large concrete members dry with a slower rate than the thin ones. Consequently, shrinkage in large sized members is usually lower than that in the small ones, for the same drying period.

aggregate size affects shrinkage ( using coarse aggregates decreases shrinkage )on the other hand the recycled aggregate and the degree of their saturation influence the shrinkage .

There are several types of shrinkage such as plastic, chemical, autogenously, carbonation, thermal and drying shrinkage. Amongst the different types of shrinkage mentioned, the drying shrinkage has high magnitude and remarkable influence on durability of concrete and plays an important role for the structural member as it would be harmful when it is restrained. The magnitude of the shrinkage depends on several factors such as quantity and type of binder and aggregates, relative humidity, water to cement ratio, curing condition, member size and mixing method. They related the autogenously shrinkage partly to the hydration reactions of Portland cement and reactions of Al2O3 to form ettringite, and partly to hydration of fly ash; the latter brought about the slowdown of shrinking process

Aggregate and cement significantly influences in the retraction. It is relevant to consider the effects of several other factors, such as: humidity, temperature etc.

Mostly shrinkage is influence by the factor of aggregate and cement type. But enviromental condition is the driving force.

Dear, the environment and the casting practice, the cement chemical composition, and the aggregate can influence the amount of shrinkage in concrete.

Depends lesser on the agregate characteristics, but mainly on the cement. Most shrinkage is due to drying shrinkage, which develops after setting. This type of shrinkage depends on the composition of cement. Those cements made with lower lower clinkerization temperature will experience bigger resistance gaining factors, but also more shrinkage

Type of aggregates may affect to shrinkage of concrete, but indirectly through relationships with other parameters. The reliable method for reducing the amount of shrinkage in the concrete is the choice of the best-granulated type of aggregates to achieve better compactness of concrete. In this way, the lesser quantity of cement-paste should be used for the same quality of concrete.

The amount of shrinkage stress that develops in normal concrete predominantly depends on the aggregate compressive strength plus the cement type and content.

shrinkage results due to moisture loss in the hydrated cement paste. Most of aggregate does not shrink, reduction of shrinkage occurs because of the increasing content of aggregate(reducing the cement paste content). The great with high density and high modulus of elasticity will increase the concrete shrinkage.

different aggregates will affect to shrinkage of concrete.

It is influenced by the quantity of aggregate and cement type.