Оптовая продажа высококачественного цемента портланд цемент оптом дешевая цена из Тайланда

Сохранить в закладки 10000019156797:


Цена:*

Количество:

  • В избранное

Описание и отзывы

Характеристики


Portland cement


Portland cement, binding material in the form of a finely ground powder, usually gray, that is manufactured by burning and grinding a mixture of limestone and clay or limestone and shale. The inventor Joseph Aspdin, of England, patented the basic process in 1824, naming it for the resemblance of the cement when set to portland stone, a limestone from the Isle of Portland. When mixed with water, the anhydrous calcium silicates and other constituents in the portland cement react chemically with the water, combining with it (hydration) and decomposing in it (hydrolysis) and hardening and developing strength. 


Portland cement is the most common type of cement in general use around the world, used as a basic ingredient of concrete, mortar, stucco, and most non-specialty grout.
It is a fine powder produced by heating materials in a kiln to form what is called clinker, grinding the clinker, and adding small amounts of other materials. Several types of Portland cement are available with the most common being called ordinary Portland cement (OPC) which is grey in color, but a white Portland cement is also available.


 


 


 II. CEMENT STANDARD


 1.Vietnam standard (TCVN)


- Quality of Cement as per TCVN 6260 - 2009


2. European standards (EN)


- Certificate I -EN 197-1.2000- CEM II 42,5 R


- Certificate II - En 197-1.2000 CEM II 42,5N


- Certificate III - EN 197-1.2000 CEM I 42,5R


 3. American standards (ASTM)


- ASTM C150 TYPE-1


- ASTM C595 TYPE- 1P


- ASTM C1157 TYPE- HE
















         

 


 


453 (1).png453 (2).png453 (3).png453 (4).png453 (5).png453 (6).png453 (7).png


 


 


 


 


 


 


 


 


 


 


 


 


 


Похожие товары

Новые поступления

Новинки товаров от производителей по оптовым ценам