Composition includes the chemical and mineralogic make-up of the single or varied fragments and the cementing material ( lithics are called lithic sandstones.
12.
When sandstone is cemented to quartzite, the individual quartz grains recrystallize along with the former cementing material to form an interlocking mosaic of quartz crystals.
13.
The composition of siliciclastic sedimentary rocks includes the chemical and mineralogical components of the framework as well as the cementing material that make up these rocks.
14.
The most common cementing materials are silica and calcium carbonate, which are often derived either from dissolution or from alteration of the sand after it was buried.
15.
The height of the temple is also constrained by the weight of the superstructure on the walls by the use of dry masonry and bonding stones without clamps or cementing material.
16.
Mercury exposure has been shown to cause cancer, birth defects and nerve damage, but most scientific research on the effects of mercury in amalgam, which is used as a cementing material, have been inconclusive.
17.
However, asphalt concrete, which is frequently used for road surfaces, is also a type of concrete, where the cement material is bitumen, and polymer concretes are sometimes used where the cementing material is a polymer.
18.
The height of the temple was also constrained by the weight of the superstructure on the walls and, since Chalukyan architects did not use mortar, by the use of dry masonry and bonding stones without clamps or cementing material.
19.
Portland clinker is ground with gypsum and pozzolanic materials which, though they do not have cementing properties in themselves, combine chemically with Portland cement in the presence of water to form extra strong cementing material which resists wet cracking, thermal cracking and has a high degree of mortar
