Effects of anti-clay agents on fresh and hardened properties of concrete containing clay

Effects of anti-clay agents on fresh and hardened properties of concrete containing clay

Blog Article

In this paper, four kinds of agents (2000 polyethylene glycol (pg2000), aminosalicylicacid Lockers (ASA), saodium alginate (SA), sodium metasilicate anhydrous (SMA)) were investigated as potential anti-clay agents combined with polycarboxylate water reducer (PCE), and the fluidity, compress strength, and flexural strength of cement paste, mortar, and concrete containing aforementioned anti-clay agents were tested.It found that among the tested potential anti-clay agents, Body Lotion PG2000 have performed well.The fluidity of the concrete with PG2000 increased 16mm compared to the control sample.In order to understand the mechanisms underlying this improvement, X-ray Diffraction(XRD) of cement paste was carried.

The results show PG2000 has the highest interlayer spacing(d=2.865142nm) compare with control sample(d=2.828410nm) (not added PG2000), which make it more effective on the fluidity of concrete.