Granular backfill unit weight
WebJan 1, 2024 · 1. Granular Backfill Borrow, Classification A-1. Refer to AASHTO M145. a. Well-graded material. b. Maximum aggregate size is 1½ inches for plastic pipe, 2 inches for all other pipes. 2. Flowable fill. Refer to Section 03575. a. Use only for drainage pipe backfill. B. Other materials or trench configurations for drainage pipe bedding and Webgranular material is weighed in trucks, a unit weight of 135 pcf will be used to convert the weight of select granular material to cubic yards. At the Engineer’s discretion, truck …
Granular backfill unit weight
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WebThe following densities should be used for estimating quantities of granular material. Table 2: Granular Material Densities Material Density Granular Subbase 135 pcf Granular Backfill 125 pcf Granular Blanket 125 pcf Granular Shoulders 140 pcf Special Backfill (treatment) … WebApr 11, 2024 · UMJU SUUS. 12 Figure 15.45 shows a gravity retaining wall retaining a granula gravity retaining wall retaining a granular (c' = 0) back- fill. The same soil is present at the bottom of the wall and on the esent at the bottom of the wall and on the left. The unit weight and the friction angle of the backfill are 18.5 kN/m and 35°, respec- tively.
WebBackfill material shall be free from organic materi al and conform to one of the following types: .1 Type 1 – Granular Backfill Sieve Size % Passing Standard Sieve Granular Limestone 37.5 mm 100 100 25.0mm 85 – 100 85 – 100 4.75 mm 25 – 80 25 – 80 425 mm 15 – 40 15 – 35 75 µm 8 – 18 0 - 10 Min. Crush Count 15% - Max. WebA frictionless retaining wall is 7 m high and supports a horizontal backfill with the following properties: dry unit weight = 14.6 kN/m, saturated unit weight = 19.21 kN/m, angle of friction - 34°. %3! %3D • If the ground water table is very deep, what is the expected total active thrust in the wall if it is 1.5 m wide? ( Select ) .
WebMaterial for backfill in water. Place select granular material to 3 ft above fabric and water level. 265-4 Measurement and Payment ... a unit weight of 135 pcf will be used to convert the weight of select granular material to cubic yards. At the Engineer’s discretion, truck Web8.3—Consistency and unit weight, p. 14 8.4—Strength tests, p. 14 CHAPteR 9—LoW-DensItY CLsM UsInG PReFoRMeD FoAM, p. 14 9.1—General, p. 14 9.2—Applications, p. 15 ... (cubic meter) than most soil or granular backfill materials, its many advantages often result in lower in-place costs. In fact, for some applications, CLSM is the only ...
WebJan 12, 2024 · Backfill for structures that are bridges, grade separations, pump stations and retaining walls (Granular Material Class II) will be placed in 6 inch (150 mm) layers. Each layer will be compacted to 100 percent of the maximum unit weight in the load bearing area. The load bearing area is the area within the 1 on 1 slope down from the outer ...
Web703.11 Structural Backfill for 603 Bedding and Backfill 703.12 ... unit weight: AASHTO T 19: Light weight chert in aggregates: AASHTO T 113: Sand equivalent: ... Except for GS, use the following gradations for the granular material types, by weight: 1. inconsistency\\u0027s 2aWebA 5 m-high smooth, vertical wall retains a granular backfill with unit weight of 18 kN/m³ and a friction angle of 35°. Find the magnitude and location of the resultant active thrust. If a 10 kPa uniform surcharge acts at the top of the backfill, find the magnitude and location of the active thrust. incidence of hydrocephalusWebA vertical retaining wall with a horizontal granular backfill has a height of 16 ft. The unit weight of the backfill, γ equals 120 pcf and Φ = 35°. For a surcharge of q = 300 psf … inconsistency\\u0027s 2bWebThe unit weight of a soil depends on the composition of the soils particles, the amount of water in the soil, and how well compacted the soil is. The contributing factors include, but … incidence of hurricanesWebMar 8, 2016 · The unit weight of low density CLSM mixtures can range from 320 to 1300 kg/m 3 (20 to 80 lb/ft 3), depending on the amount of preformed foam that is injected into the mixture during batching. Bearing Strength – the bearing strength of flowable fill mixtures is directly related to their unconfined compressive strength. incidence of hsv2WebThe properties of backfills were given in Table 1 and Perspex wall properties were: Young's modulus, E ¼ 3.2 GPa; Poisson's ratio, v ¼ 0.3; and density, q ¼ 1190 kg=m 3 . Fixed boundary con ... incidence of hydatidiform moleWebThe backfill is a granular soil with unit weight, γ =18 kN/m3 , and friction angle of ϕ=30o . The existing soil below the base has the following properties: γ=19 kN/m3 ,ϕ=36o and c = 40kN/m2 . The wall is embedded 1m into the existing soil. Determine the value of X in meter that achieves a factor of safety equals 2 with respect to sliding ... incidence of hydrocephalus uk