Aggregates. Aggregate shall comply with British Standard as follows: Fine - B.S. 882 Table 2 Zones 1 to 3 only Coarse - B.S. 882 Table 1 “All in” - B.S. 882 Tables 3 Each type of aggregate shall be obtained from one approved source, capable of maintaining adequate supplies of consistently graded material throughout the Contract. Aggregates for exposed concrete shall be free from all impurities likely to cause discoloration and shall be on consistent colour throughout the work. Fine aggregates and sand shall be clean, sharp, coarse, hard material and equal at all times to the samples, which shall be deposited with and approved by the Engineer. The caustic soda test for organic impurities shall show a colour not deeper than that of the standard solution. The settling test for natural sand shall be made and after being allowed to settle for three hours the layer of silt deposit on the coarse material shall not exceed 10%. The Contractor shall supply all necessary equipment for the testing of fine aggregates and sand for the use of the Engineer. Coarse aggregates shall be hard, clean gravel or broken stone from approved quarries and shall be free from earth, decomposed stone, and extraneous matter. They shall conform to B.S. 882 Table 1 and shall be “Grade Aggregate” 19 mm to 5 mm. Thin, elongated, friable, flaky or laminated pieces; mica or shale shall only be present in such small quantities as not to affect adversely the strength and durability of the concrete. The amount of fine particles occurring in a free state or as loose adherent shall not exceed 1% when determined by the laboratory sedimentation test. After twenty-four hours in water, a previously dried sample shall not gain more than 10% in weight. Each grade of aggregate shall be stored in the works in separate heaps so that there shall be no possibility of any inter-mixing. Any materials which have become inter- mixed shall be removed from the site forthwith by the Contractor. If, in the opinion of the Engineer, the aggregate is dirty or adulterated in any manner, it shall be washed and/or screened by the Contractor to the satisfaction of the Engineer.
Aggregates. 12.1 The Coverholder shall record and monitor the aggregate exposures as defined in the Schedule;
Aggregates. Add the following to the second paragraph: “Crushed gravels utilized for coarse aggregate in the production of any Hot Mix Asphalt Mixture to be placed on traffic lanes and ramps on the Mainline Thruway and Spurs shall be processed so that 90% of all particles larger than 4.75 mm have a minimum of two (2) fractured faces and 95% shall have a minimum of one (1) fractured face. Where MM 5.16 requires higher percentages of fractured faces, the higher percentages shall be used.”
Aggregates a. Stock pile to prevent excessive segregation or contamination with other materials or other sizes of aggregates.
Aggregates. Lessee shall give written notice to the Director within five (5) days of the date upon which total claims by any party against Lessee reduce the aggregate amount of coverage below the amounts required by this Agreement. In the alternative, the policy may contain an endorsement establishing a policy aggregate for the particular project or location subject to this Agreement.
Aggregates. 20.2 The Service Company Coverholder shall monitor the aggregate exposures and shall not bind total aggregate limits in excess of the amounts stated in 20.2 of the Schedule other than with the prior written agreement of the Underwriters.
Aggregates. 2 percent for the aggregate passing the 1½″, 1″, ¾″, ½″, ⅜″, and 4 the No. 4 sieves, 1 percent for aggregate passing the No. 8 sieve, and 0.5 5 percent for the aggregate passing the No. 200 sieve. The adjusted JMF shall 6 be within the range of the control points in Section 9-03.8(6).
Aggregates. TS-109 This specification covers fine and coarse aggregates other than lightweight aggregates for use in the production of concrete. TS-110 When lightweight aggregates are required they shall be defined in the Particular Specification. TS-111 The aggregates shall be crushed gravel or stone and shall comply with BS 882 for graded or single size aggregate and shall be obtained from any quarry in the mountains approved by the Managing Official. For convenience part of Clause 5 of BS 882 (grading) including Tables 1, 2 and 3 are reproduced herein.
Aggregates. Aggregates shall consist of clean, sound, durable particles of crushed limestone stone. The Contractor shall obtain materials that meet the specification and can be used to meet the grade and smoothness requirements specified herein, after all compaction operations have been completed. The aggregates shall be free of silt and clay as defined by ASTM D 2487, vegetable matter, and other objectionable materials or coatings. The portion retained on the 4.75 mm (No.
Aggregates. Fine and coarse aggregates shall be as defined by and be of the quality and nature required by BS 882 and BS 1201 whichever is applicable. In addition they shall be chemically inert to alkali reaction. Prior to acceptance of an aggregate as inert to alkali reaction the report of a qualified geologist, appointed by the Engineer on the suitability or otherwise of materials shall be obtained following examination of all types of material that the proposed sources will yield during the course of the contract. The Engineer may require that samples be taken from boreholes and for large contracts or contracts extending over a long period then more than one report is to be obtained. Aggregates shall conform to the requirements of the “Acceptance Standards” of Table 2.4. Table 2.4 Sampling, Testing and Acceptance Standards Materials Test Site Sampling Testing Accepted Standards Remarks CEMENT Ordinary Portland BS 12 Manufacturer’s Test Certificates Rapid Hardening BS 12 Sulphate Resisting BS 4550 BS 4027 AGGREGATES Description and Classification BS 812 Section 2 BS 882 Whichever is applicable Particle size BS 812 Sec.1 BS 812 Sec.3 BS 882 ) Particle Shape BS 812 Sec.1 Visual & BS 812 Sec.3 ) ) Mix Design Sp. Gravity BS 812 Sec.1 BS 812 Sec.3 ) Requirements Density BS 812 Sec.1 BS 812 Sec.3 ) Voids BS 812 Sec.1 BS 812 Sec.4 )
