Ea25p Magnesium Oxide Expansion Agent Gray Powder Adjustable Expansion Performance for Underground Engineering Tunnel Lining Bridge Construction

EA25P is professional magnesium oxide based expansion agent for concrete, features adjustable expansion performance for full cycle shrinkage compensation under diverse working conditions.

Delivers good material uniformity and stable expansion performance, realizes coordinated compensation between concrete expansion and shrinkage during whole service cycle.

Achieves high expansion rate and outstanding post expansion effect, owns reliable chemical stability for long-term concrete structure service.

Special advantage of no requirement for water curing, simplifies on-site construction operation for underground tunnel and bridge projects.

Strict control of chemical indexes, alkali content no more than 0.75 percent, chloride ion content no more than 0.6 percent, moisture content kept below 1 percent.

Wide application scope for underground engineering road construction tunnel lining and bridge engineering concrete anti-crack projects.

Recommended dosage ranges 4.0 percent to 8.0 percent of cementitious material weight. Pre-test must be carried out according to raw material and construction specification before formal use.

Compatible with all Portland cement and cement-based products. It can cooperate with full range Sidley admixtures while separate feeding into concrete mix is required.

Supplied as gray powder packed in 25 kilogram paper bag. Store in dry clean environment far away from water source, adopt first in first out rule and seal package tightly to avoid moisture absorption.

Classified as non-hazardous goods for transportation. Avoid dust accumulation during handling, wear protective gloves and prevent eye contact. Clean spillages under dry condition to eliminate slipping