Mortar Types – Name of mortar using both cement and lime as binders What is the correct term for mortar in which both cement and lime are used together as binding materials?

Introduction / Context:
Mortars are tailored for workability, strength, and durability by adjusting binders and aggregate. Combining lime with cement can improve plasticity and water-retentivity while retaining sufficient strength, and this combined-binder mortar has a specific name used in specifications.

Given Data / Assumptions:

• Binders used: both cement and lime.
• Aggregate: usually sand of appropriate grading.
• Application: general masonry or plaster where improved workability is desired.

Concept / Approach:
Gauged mortar is produced by “gauging” lime mortar with cement. The lime provides plasticity and better adhesion; cement accelerates early strength and reduces set time. Proportions are set to meet the required class of mortar.

Step-by-Step Solution:
Identify presence of both cement and lime.Recall standard term: gauged mortar.Differentiate from pure cement or pure lime mortars.

Verification / Alternative check:
Schedules of mortar mixes list gauged mortars for brickwork/plaster where workability and bond are prioritized alongside adequate strength.

Why Other Options Are Wrong:

• Cement mortar/lime mortar: use a single binder only.
• Fire-resistant/light-weight mortar: defined by special aggregates or performance, not by the combined binders.

Common Pitfalls:
Over-gauging with too much cement can reduce the benefits of lime; follow specified proportions for the intended mortar class.

Final Answer:
Gauged mortar