Cement Testing

Cement Testing

Cement, a fine-grained binder which when mixed with fine aggregate, sand and water transforms into a paste that binds and hardens when submerged in water.
High quality cement is necessary for the production of mortar and concrete to satisfy relevant construction industry specifications.

• Consistency, initial and final setting time (Vicat method)
• Soundness of cement (le-Chatelier method)
• Fineness
• Specific gravity
• Chemical analysis of cement
• Flame photometry
• Loss on Ignition

 

CONSISTENCY, INITIAL AND FINAL SETTING TIME (VICAT METHOD)
The vicat test set determines the quantity of water required to produce a cement paste of standard consistency and setting time of cements.

Figure 18: Vicat apparatus

 

SOUNDNESS OF CEMENT (LE-CHATELIER METHOD)
The le chatelier method is used to determine the expansion of cement

Figure 19: Le – Chatelier mould

FINENESS
The Blaine apparatus is used to determine the fineness of cement

Figure 20: Blaine air permeability apparatus

 

SPECIFIC GRAVITY
The Le chatelier flask is used for determining the density of cement

Figure 21: Le-Chatelier flask

CHEMICAL ANALYSIS
Chemical analysis plays an important part in the categorization of cement.

FLAME PHOTOMETRY
The flame photometer

is used to determine the constituent parts of cement

Figure 22: Flame photometer

 

LOSS ON IGNITION
The muffle furnace is used for determining the loss on ignition and insoluble residue of cement

Figure 23: Muffle Furnace