The phrase "additional reinforcements" is correct and usable in written English.
It can be used when referring to extra support or backup in various contexts, such as military, construction, or team efforts.
Example: "The team requested additional reinforcements to ensure the project's success before the deadline."
Alternatives: "extra support" or "further backup".
When President Bush began to send additional reinforcements to Iraq in February, the weekly figure was about 1,400.
These additional reinforcements can be applied as an unstressed or prestressed system.
With the arrival of additional reinforcements, Arnim proceeded to expand the perimeters around Tunis and Bizerte into a single bridgehead.
The British regrouped along the Gazala Bir Hakeim line, just west of Tobruk, and both sides received additional reinforcements.
While Mr. Karzai had requested a focus on border areas, the spokesman said, additional reinforcements were also needed throughout the country, including in Wardak and Logar.
"They asked for additional reinforcements of Afghan National Army soldiers, and they were sent to help them fight the insurgents immediately.
Four types of 1.2 m square panels were subjected to blast to investigate the performance of new walls: reinforced concrete (RC) panels; fiber reinforced concrete (FRC) panels without additional reinforcement; FRC panels reinforced with steel bars; and RC panels reinforced with glass fiber reinforced polymer (GFRP) bars.
By default, all other specimens were designed in the same manner as the Specimen BC, but each specimen was reinforced with different additional reinforcement, as follow.
Performance of near-surface mounted (NSM) bars as additional reinforcement in strengthening of existing reinforced-concrete construction largely depends on its development capacity, controlled by the surface characteristics of the bar, and its interactions with the surrounding epoxy paste filler and the cover concrete.
Durability and wear-related geometry change of three constructional solutions of subsoiler shanks were determined in field conditions: a shank with no additional reinforcement (shank A) and elements reinforced by pad welding and with sintered carbide (WC) plates (shanks B and C).
This involves the provision of additional reinforcement bars in the mid-layer of reinforced concrete beams.
