Provided is a masonry treatment composition containing a fluorine-containing polymer, which contains, as essential components, a fluorine-containing monomer having a fluoroalkyl group represented by the formula (a) CH.sub.2C(X)C(O)YZRf, a first hydrophilic monomer represented by formula (b) CH.sub.2CX.sup.11C(O)OROX.sup.12, a second hydrophilic monomer represented by formula (c) CH.sub.2CX.sup.21C(O)O(RO).sub.nX.sup.22 or CH.sub.2CX.sup.31C(O)O(RO).sub.nC(O)CX.sup.32CH.sub.2, and (d) repeating units derived from a monomer having an anion donor and an ethylenic unsaturated double bond. Provided is a treatment composition which can impart outstanding water repellency, oil repellency and anti-fouling properties to a masonry substrate.

Chemical-resistant polymer concrete and methods of use thereof are described herein. The polymer concrete comprises a polymer layer and aggregates. The polymer layer is formed by reacting an epoxy vinyl ester resin promoted with cobalt and catalyzed by a peroxide. A concrete substrate is formed by layering the polymer layer and aggregates in thin alternating layers until a desired thickness is achieved. This layering method can reduce shrinkage of the concrete, thereby preventing cracking, deformation or debonding.

A multiphase particle has a multiphase structure comprising a first phase and a second phase and has an average particle size of 0.1-100 mm. The multiphase particle has a high bulk strength and a good interface binding power with the hardened cement and is particularly suitable for the toughening application of the hardened cement.

A targeted corrosion inhibitor for marine reinforced concrete, and a preparation and application thereof. The targeted corrosion inhibitor is a nano silver-loaded nitrite-intercalated layered double hydroxide. The targeted corrosion inhibitor is prepared based on interlayer ion exchangeability of layered double hydroxides and specific recognition of Ag.sup.+ to chloride ions.

Spray dried homogeneous mixtures of a high molecular mass flocculating agent, a base polymer dispersion, and a protective colloid are useful for homogenously stabilizing mixtures such as dust, sand, and/or soil and produce a stabilized composition of high strength.

A high solids, sprayable, fast drying, ready-mixed setting-type joint compound comprising a blend of a joint compound mixture comprising: joint compound mixture ingredients comprising: calcium sulfate hemihydrate (e.g. US Gypsum's HYDROCAL C-Base), a chelating agent, and water; and an activator mixture, wherein the activator mixture comprises: activator mixture ingredients comprising: inert filler, set accelerator, and water, wherein a weight ratio of joint compound mixture:activator mixture is 1:1 to 100:1, wherein the activator mixture viscosity is the same as the joint compound mixture viscosity plus or minus 50 percent, and wherein the joint compound has about 55 to about 80 wt. % solids and a viscosity of 2,500-28,000 cps.

Systems and methods for manufacturing a gypsum board having oxidized modified cellulose fibers are provided. A gypsum board includes a gypsum layer formed from a gypsum slurry, where the gypsum layer has a bottom and a top. The gypsum slurry includes oxidized modified cellulose fibers. The gypsum board further includes a first mat placed on the bottom of the gypsum layer, and a second mat placed on the top of the gypsum layer.