612.03 Construction Requirements.
MORTAR FOR MASONRY
611.01 Description.
This Section shall cover the work of furnishing mortar made in accordance with these specificat ions, for the various classes and kinds of masonry when its use is required.
611.02 Materials.
Materials shall conform to the provisions of Division 800, Materials. Specific reference is made to the following: Masonry Cement Article 815.06 Sand Article 802.03 Water Article 807.01 Hydrated Lime Section 805
611.03 Construction Requirements.
The mortar shall be composed of one part of cement and two parts of sand by volume, on basis of dry sand, and sufficient water to make a mortar of such consistency that it can be easily handled and spread with a trowel. If directed, hydrated lime, not to exceed 15 percent of cement by weight {mass}, shall be added, except that if masonry cement is used hydrated lime will not be required. Mortar shall be mixed only in quantities required for immediate use. Unless an approved mortar mixing machine is used, the sand and cement shall be mixed dry in a watertight box until the mixture assumes a uniform color, after which water shall be added as the mixing continues until the mortar attains the proper consistency. Mortar which is not used within 45 minutes after water has been added shall be wasted. Retempering of mortar will not be permitted.
611.04 Method of Measurement.
No measurement will be made for mortar for m asonry.
611.05 Basis of Payment.
Payment for mortar for masonry shall be included in unit prices of pay items for various kinds of masonry, and no direct payment will be made for mortar. SECTION 612 RUBBLE MASONRY
612.01 Description.
This Section shall cover the work of furnishing and constructing Rubble Masonry consisting of approved stones laid in mortar as a means of constructing structures or parts of structures in accordance with these specifications to the lines and dimensio ns shown on the plans or designated. Rubble Masonry as herein specified shall include the Types commonly known as Coursed Rubble, Uncoursed Rubble, and Rustic Rubble.
612.02 Materials.
Materials shall conform to the provisions of Division 800, Materials. S pecific reference is made to Type I and Type III, Masonry Stone, Subarticles 812.01(a) and (c), respectively. Mortar shall meet the requirements of Section 611, Mortar for Masonry.
612.03 Construction Requirements.
a.Shaping Stone .
1.Coursed and Uncours ed Masonry Stone . The stones shall be roughly squared on joints, beds and faces. All shaping or dressing of stone shall be done before the stone is laid and no dressing or hammering which will loosen the stone will be permitted after it is placed.
2.Rusti c Masonry Stone . Only shaping required will be that to eliminate sharp points and projections.
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 492–491 of 934.