How to use subgrade in a sentence

Looking for sentences and phrases with the word subgrade? Here are some examples.

Sentence Examples We scarify the top 2 to 12 inches, add the proper amount of moisture, compact the subgrade, then fine-grade for paving. Workers again placed concrete mud beds on the subgrade under the drains and attached angle iron to them with concrete anchors. General purpose cement and lime are commonly used in subgrade stabilisation by Australian councils. Depending on various factors, you might need to place a layer of base material on top of the subgrade. The city needs to radically rethink its subgrade infrastructure with waterproof vaults for electrical, gas, fiber optic and cable lines. The subgrade underneath the track at the derailment site had collapsed into Green Lake prior to the arrival of the train. On sites presenting difficult ground conditions, a trimmer unit can be mounted as an optional feature to create a perfect subgrade level. A normal floor screed as used for any floating installation is sufficient for the subgrade. Heavy, muddy soil makes life tough for road builders, because roads need a reliable subgrade. Road rollers can roll and compact sandy soil, semi-viscous soil, cohesive soil, subgrade stabilized soil and asphalt concrete pavement. The south side of the subgrade culminated in a ponded ditch, which after the derailment contained water to a depth of one metre. The cars were unable to negotiate the sudden collapse of the track brought on by subgrade failure and thus derailed. The subgrade had been constructed across a corner of the lake, over a base of silt and peat. Placement of the subgrade on the silt and peat lake bed created the condition that lead to the subgrade failure. Before installing ceraclic original, no special subgrade preparation is necessary. The data extraction point is located on the top of the upper subgrade layer beneath one side of the rails. The soil at the base of the railway subgrade was displaced into the pond in a fluid, flow-like manner. Grubbing for road approaches should only be done immediately prior to subgrade construction. The crew could not bring the train to a stop before the cavernous depression in the track subgrade. Formation of shrinkage cracks allows water infiltration that weakens the subgrade, which may lead to further fatigue cracking in the pavement structure. Show More Sentences Some contractors rework soft spots in the subgrade material, mixing quicklime or fly ash into the material to help dry it out or bind it together. Load is transmitted through the slabs to the underlying subgrade by flexure of the slabs. Due to its western exposure, the western surface of the subgrade thawed quicker than the surrounding terrain. Industry has taken important initiatives such as the Railway Ground Hazard Research Program to better understand, identify, and mitigate risks relating to geology and the behaviour of railway track subgrade. Furthermore, due to the way concrete pavements distribute vehicle loads, it is virtually unaffected by the seasonal weakening of the underlying granular bases and subgrade. This construction will include excavation and filling activities to regulate existing soil profile, installation and compaction of a subgrade and laying of asphalt. The subgrade was soft, with water standing on both sides of the track. In winter, a subgrade furnace blew hot air through a single giant duct. A large amount of subgrade material slumped to the east into the muskeg. In addition, such water could have served to saturate the subgrade. Whether heavy, coarse-grained or sandy subgrade material: The tractor-towed stabilizer can be relied on to convert it into soil that is highly suitable for placing and compacting. Certainly, the collapse of surface material on the lake-side of the track, across from this catch basin, indicated that the subgrade abutting the catch basin was water-saturated. The railway subgrade in the vicinity of the derailment was constructed of local materials consisting of silty, sandy clays, and sand on a six to eight-foot fill. The train derailed at a location where an unusually high volume of water flowing in the east ditch had eroded the ballast and subgrade under the rails. It consists of 127-mm thick AC surface course, 200-mm thick crushed stone granular base, 307mm thick granular subbase on top of the subgrade. Most of the rutting from the accelerated loading occurred in the soil subgrade as was expected. A new 18-inch-thick rock subgrade will be placed, topped with 12 inches of gravel and capped with a layer of asphalt, Little said. A pond had formed bordering on the upstream side of the track subgrade. It also revealed that the areas where the subgrade of the track were built on saturated peat and where surfacing work is required regularly to maintain the profile of the track are areas susceptible to punching. A subgrade failure had occurred suddenly and without warning when all indications were that the track was in good condition and that there were no early signs of distress. Show More Sentences In this respect, the recent track shimming above the culvert was a result of a softening of the subgrade about the culvert likely due to the infiltration of water from the ditch. This will increase the runoff potential, however ponding will be exacerbated due to localized settlement if attention is not paid to proper subgrade and base compaction. Pavement layers: The subgrade comprises of natural pozzolanic subgrade in some sections, imported selected material on weak areas and lateritic clayish material on the remaining sections. It is necessary to estimate the modulus of elasticity and Poisson's ratio both of the recycled layer and the subgrade, as well as the parameters of the existing layers that are to remain untreated, if any. Fill from the subgrade of the Trans-Canada Highway, parallelling the railway above the tracks, had slipped away, and cracks were noted in the pavement directly above the wreckage. Rigid pavements are constructed of portland cement concrete slabs resting on a prepared subbase of granular material or directly on a granular subgrade. Flexible pavements are constructed of several thicknesses of asphalt or bituminous concrete layers overlying a base of granular material on a prepared subgrade. Backwater from the river saturated the subgrade. The cut, even surface forms an ideal subgrade for road pavements, and transport vehicles can use it during the construction period without causing damage. The accident occurred when the cars were unable to negotiate the sudden collapse of the track resulting from the failure of the subgrade most likely caused by punching and thus derailed. Geogrid is known as a reinforcement material that has been used to increase stability and improve performance of soft and weak subgrade in roadways. The bearing strength of the pavement is reported by indicating PCN, pavement type, subgrade category, allowable tyre pressure, and method of the evaluation. Additional works relate mainly to increase the height of the embankment subgrade and improvement of drainage system, which will reduce the risk of cracking of the asphalt. This method involved spreading tar on the subgrade, placing a typical macadam layer, and finally sealing the macadam with a mixture of tar and sand. Moreover, a frost blanket course drains pavement structure and evenly distributes loads on the subgrade surface, also protects pavement structure from the frost heaves. Examples from Classical Literature In the subgrade telephone and telegraph ducts east of the Manhattan Shaft, much trouble was caused by grout in the ducts. The pavement laid was bitulithic and the subgrade was an old macadam road built by the County. The side-walls and subgrade electric conduits were water-proofed with felt and pitch. When the work was finished, a subgrade reversed-grade drain carried the water to the shaft sump by gravity. In each grade and subgrade date of commission, appointment, or warrant determines the order of precedence. Find more words! 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Use our Sentence Generator Nearby Words subglottic subglobose subglacial subgenus subgenres subgenre subgroup subgroups subharmonic subhead subheading subheadings 8-letter Words Starting With s su sub subg subgr subgra subgrad