Loading Image

Almost there!

Loading Image

Loading website!

CEM I 42.5R

CEM I 42.5R
CEM I 42.5R
Composition

CEM I 42.5 R Portland Cement is a hydraulic binder according to SANS 50197. The main component is Portland cement clinker finely ground together with calcium sulphate, which controls the setting time for CEM I 42.5 R. Stringent production control during the entire production process ensures consistent high quality.

Specification

CEM I 42.5R Portland Cement is a rapid hardening cement ready for early strength or higher strength class. The cement is designed to meet a strength class 42.5R.

Application

CEM I 42.5R Portland Cement can be used in applications where a higher early strength or strength class is required. It can be used in ready-mix concrete, precast concrete, or production of concrete goods.

Typical applications are concrete, mortar, masonry products and shotcrete.

  • Higher earlier strength in counteracting the effects of cold weather conditions.
  • Gives higher early strength for a given cement content.
  • Earlier pre-stressing for pre-stressed concrete.
  • Earlier stripping time for molds and formwork.
  • Higher strength class of concrete.
  • CEM I 42.5R is compatible with commercial chemical admixtures..
Categories: Product Data Sheets

Related Articles

Causes of cracking It has long been recognized that the main reason for concrete cracking ...

Causes of cracking It has long been recognized that the main reason for concrete cracking or delamination in reinforced concrete s...

Causes of cracking It has long been recognized that the main reason for concrete cracking or delamination in reinforced concrete structures is due to the stresses caused by restrained shrinkage and/or movement. At any time, whether in fresh or hardened concrete, if the tensile stress builds up to pass the tensile strength of concrete, cracking occurs to relieve the tensile stress build up. Strain release can be both on a large (macro) a...

Causes of cracking It has long been recognized that the main reason for concrete cracking or delamination in reinforced concrete structures is due to the stresses caused by restrained shrinkage and/or movement. At any time, whether in fresh or hardened concrete, if the tensile stress builds up to pass the tensile strength of concrete, cracking occurs to relieve the tensile stress build up. Strain release can be both ...

About Us

Ohorongo (Pty) Ltd. is one of the first of Namibia's cement manufacturers and owns one of the most modern cement plants in Africa. It was constructed over the course of two years by leading international engine...

Our Products

Top Viewed Articles

Top Viewed Categories

These are the Top Viewed Resources & Tools Categories.

Our Contacts

Ohorongo Windhoek Office
11 Van Der Bijl Street, Northern Industrial Area, Windhoek
P.O. Box 86842, Eros
Tel: +264 61 389 300

Cement Plant
Sargberg Plant, North Otavi
P.O.Box 444, Tsumeb
Tel: +264 67 235 7000



Contact Form