The invention relates to an anti-clay polycarboxylate
water reducer capable of being compounded with a
naphthalene water reducer and a preparation method thereof. The anti-clay polycarboxylate
water reducer is prepared from the following raw materials: a
comonomer, a
chain transfer agent, an initiator and deionized water. The preparation method comprises the following steps: adding the deionized water into a four-mouth flask and heating to 60-80 DEG C; filling the
comonomer, the
chain transfer agent and the deionized water in a
beaker to prepare a solution A; filling the initiator and the deionized water in another
beaker to prepare a solution B; respectively, simultaneously and uniformly dropping the solutions A and B into the four-mouth flask by a constant flow pump, and after reaction, cooling and adjusting the pH value to 6.5-7.0 to obtain the anti-clay polycarboxylate water
reducer. The polycarboxylate water
reducer provided by the invention can be compounded with the
naphthalene water
reducer in use, so that the problem that the prior art, the polycarboxylate water reducer and the
naphthalene water reducer are incompatible is solved. The anti-clay polycarboxylate water reducer is good in anti-clay performance and can be used for remarkably improving the working performance of high
silt content aggregate prepared concrete, and the fresh concrete is good in peaceability, less in gradual loss, high in strength and suitable for industrial production.