Although the bibliography mentions that steel fibres in concrete can delay buckling of reinforcements, design codes do not distinguish between concrete types (with and without fibres) in these constructive details.
Time-temperature studies revealed that incorporation of silica nanoparticles (SNPs) in concrete mix delays the heat transfer by 11%, 18%, 22% and 15% at 200 °C, 400 °C, 600 °C and 800 °C respectively thereby, decreasing the rate of degradation as compared to the conventional high strength concrete (HSC).
As slag replacement ratios increases, the reaction degree of slag will decrease (Lee and Wang 2016), and the time corresponding to surpassing strength of control concrete is delayed.
"There's no concrete signs of delay".
Although the elevated curing temperature improves the structural performance and sustainability of the concrete pavements, any delay in concrete production increases energy consumption accordingly.
In such construction projects, improper selection of the formwork for concrete placement can delay the project schedule and result inconsiderable expense.
With the anger and sadness over Friday's massacre at a Newtown, Conn., school driving the issue at a busy moment in Washington, Obama vowed to act on concrete proposals "without delay" as several Hill Democrats urged Congress to do the same.
The longer we delay concrete action, the larger the problem, as has been demonstrated in Africa.
Cold joint means a weak joint area which may occur due to imperfect treatment of pre-placed concrete surface and delayed concrete delivery.
Therefore, it is concluded that the neutralized velocity of the lightweight aggregate concrete could be delayed to some extent because of the higher fineness of pulverized fly ash and granulated blast furnace slag.
Thus, the strengthened columns in series B can sustain higher shortening values than strengthened columns of series A. This is due to the delay of concrete splitting out after crushing of concrete, and therefore, realistic increase in the load-carrying capacity can be achieved.
