[fifty four] If an excessive amount air gets trapped inside the concrete on account of the mixing method, defoamers can be utilized to motivate the air bubble to agglomerate, increase for the surface of the wet concrete and then disperse.

The long-phrase toughness of Roman concrete buildings continues to be located to generally be on account of its usage of pyroclastic (volcanic) rock and ash, whereby the crystallization of strätlingite (a particular and complicated calcium aluminosilicate hydrate)[26] and the coalescence of this and related calcium–aluminium-silicate–hydrate cementing binders aided provide the concrete a higher diploma of fracture resistance even in seismically active environments.

Again in 2007 once we opened our doors, we could never ever have imagined our small business would grow to be what it really is today, and we hold the men and women of Sioux Falls as well as bordering parts to thank for it!

該例句來自Hansard存檔。包含以下議會許可信息開放議會許可v3.0 We have to reach a stage where by The talk is about greater than possibly concreting The whole lot in the countryside or not letting anymore advancement. 來自 Hansard archive

Customizable Composition Learn how we are able to customise a dome residence in your exceptional requires. Harmless & Safe Master why concrete domes are Amongst the most secure constructions on the globe.

Superior-flow concrete, like self-consolidating concrete, is examined by other flow-measuring techniques. One particular of such methods contains putting the cone to the slender close and observing how the mix flows with the cone although it can be steadily lifted.

該例句來自Hansard存檔。包含以下議會許可信息開放議會許可v3.0 Individuals want residences in a decent ecosystem with an excellent Standard of living, not with eco-friendly belt and eco-friendly fields concreted in excess of. 來自 Hansard archive

Significant profile – The standard stack up plant is actually a tall plant which has aggregate and cement storage bins that feed into batchers or weigh hoppers by gravity.

A lot of Roman aqueducts and bridges, Concrete like the magnificent Pont du Gard in southern France, have masonry cladding on a concrete Main, as does the dome in the Pantheon.

Cement and h2o Blend chemically to bind the sand and mixture with each other. Fly ash or other cementitious components, which enrich concrete Houses might health supplement a few of the cement.

A central-combine plant provides extra exact Charge of the concrete good quality. Central combine vegetation must be near the perform web page wherever the concrete will probably be made use of, considering the fact that hydration starts at the plant.

We've got a typical notion of what we wish, but absolutely nothing concrete at the moment. 我们对需要什么有个大致的想法，可是具体的东西目前还没有想好。 反义词

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