Document zoJVzz5E2eGMZJVa8Qk5pL683

PatentE=s Tctt - 2,016,886 UMTD STa.TE.3 PATENT OFFICE ' ^This In part or ; Of coat-- 1931, 5 in part on member r 508,103. : The < Crete 'the icrin= block cr j out mciamrs concrete ---- 20 paraffin, said persr trill fill sence of like rial tv hif~V A still 30 the ccarlirc all perbeunr sr iiAnoth^- ccncrete terial trhL 35 rough resistarre. The eigticb hereinafieer Illustrator 40 accompany Fig. 1 P i out of birr-rr being brxm 45 side wail tlon; rr Fig. 2 rr-i olitblc .nlsr' Fig. 3 :sra-r iug ar.d - Tier s. 2.016,886 CONTAINER WALL ssrt, Kalamazoo, Mich. ~ 29, 1932, Serial No. 649,363 (Cl. 72--6) Fig. 5 Is a fragment magnified of a concrete silo block treated with paraffin and showing how the surface coating is bonded to wax portions en tering and filling the pores and recesses of the concrete. s Like characters of reference indicate like parts in the several views. The silo walls shown in Fig. 1 are formed out of preformed concrete slabs or blocks 6, with ce ment mortar joints 4 and strengthened by out- 10 side hoops 3, in the usual manner, and is typical of many silos now in use throughout the country. Fig. 2 is typical of a monolithic or substantial ly monolithic silo, many of which are also in use at the present time. Practically all these con- I5 crete silos and tanks are deteriorating through the action of the ensilage or various chemically active materials stored therein. Nothing has heretofore been developed that will effectively ar rest this progressive destruction and that can be 20 applied conveniently and economically. By my invention the inside of the walls of concrete containers are proofed with asphalt. nnraffm nr other wax-like material at any time after they have been constructed. Actual ex- 25 perience has shown that this proofing positively stons further deterioration. evciTm old silos that have become deeply' etched and pitted through the chemical action of ensilage. In proofing containers the walls of the con 30 tainers are cleaned by means of brooms or wire brushes, to remove any loose particles, and. in the case of an old silo, to remove any ensilage that sticks to the.wall. Next, an area of the wall Is heated by the direct flame of a blow torch or 35 similar device. This Is continued until all mois ture is driven out of the concrete at and near the surface, so that the capillary openings are free to attract material. and receive the molten acid In the meanwhile a quantify resistant of para 40 ffin or asphalt has been melted in a pail, nnd has been kept at a temperature close to the boiling point. This liquid acid resistant material is now applied to the preheated wall area by brushing or 43 spraying and the capillary action of the con crete carries it well below the surface. There it finally comc3 in contact with the cool inner por tion of the wall and it begins to solidify. Tlii3 process of solidification continues toward the 55 outside as the wall cools and in tlil3 manner all openings In the wall, large or small, become filled with the solid ncid resistant and these fillings 9 are bonded with a coating 10 covering the inner side of the wall. Sometimes it is not possible to 55 DSW 379503 STLCOPCB4100275 touch every plication, cs material w:tr portions of = 5 ore contacrnm ----: material cnr^ rev reasons it :s : - ond time rrr ~ begun to s-v.itef- 10 rial and wiil -... , there is a raw r - sufficient :nr_z: also pener.-v-- cooled too fir:-- _ 15 surface. Ttev : next acfjo much of bonded w While I hry 20 the pores arr . members :hi bonded wtei: a terial in its . tanks and Tf 25 od can alsa v= re in many aefts- quire prote: walls and In canning 30 tion Is brci: liquids of concrete attraction. In render: 35 wall mem 40 the' joint --T.firrw:. crete wall by subjeer:: after the sm 45 as describmr r of which trs : I have tire ditions it 1* in question These con is brought: application, 55 paraffin cm ~m r over the cite r Joint-flilter v the rough: chat it will zs. 00 fact that tern bonding tn ns member atr In actum, -- dry mixed G5 concrete V unfilled :p: and graven mr at the si formed I :m ~v--------- -- nr - r_ . --.c snown in Fig'. 3. xrr-rrter:--nr: r---------------- teicient- ly on pirn 5 m-- v :vw-- rr -- v. nan 1 at a high r:----- ~ v ~ -- : :r-` of paraf-:r mmr: v rr v ~" me wall 75 member .:u_ u _ fir dm. r------- --- ---------- L after emerging from 'the bath of molten paraffin, in the wall members so treated It can be seen that the cavities between particles of aggregate at fry edges shown in Fig. 4, arc Coated, but not flUcd, with paraffin, ' The wall members, after coming up the drain- 5 lng plate 3 are immediately available for silo' construction without being subjected to the re heating of the edges as described in my applica tion No. 508,107. This effects a considerable say, jg lng of heat and makes the necessary apparatus . less complicated. It is particularly valuable where manufactured or natural gus or cheap electric current is not available, as the heating of the edges can only be accomplished conven- U lently by means of gas burners or electric heat ing elements carefully set in proper relation to the edges of container wall members. On the other hand, the preheating of the wall members and the heating of the paraffin bath can be ac- o complished by a coal, coke or oil burner such as can be set up and operated in any locality. The sUo Is constructed of these wall members in the usual way known to the art. The Joints ' between wall members are then filled by using 25 a mixture of cement and water of a rather stiff consistency. This cement mortar can best be forced into the joints with a trowel. After it has set a short while, the surplus cement can all be washed off the paraffin infused surface of wall 30 members with water, leaving the joint filled with . a plug or strip of cement, which perfectly Inter- ' locks and interlaces with the edges ot wall mem bers on both sides. ;. I claim: . ^ S3 1. A concrete wall having its capillaries and re cesses extending within the wall from its inner side filled with an acid and moisture resistant, and having a coating of the same resi-tent ever said side bonded with the resistant contained in. 40 said capillaries and recesses. . 2. A concrete wall member having the capil laries and recesses adjacent the internal side of the wall member filled with an acid and mois ture resistant as a clincher coat and having a 45 coating of the same resistant over said side bonded with the resistant contained in said capil laries and recesses to form a tightly adhering coat extending over and into the concrete. 2. A concrete silo having the capillaries and 0 recesses adjacent that side of the si'o which is exposed to ensilage acid and moisture filled with a molten paraffin or asphalt resistant, and a coating of the same resistant over said side bonded with the resistant contained in said capil- 55 laries and recesses. . 4. In a concrete container which may have its inner face exposed to a concrete destroying agent joined individual wall members having rough edges at ttie joints, said wall members having C3 their capillaries and recesses adjacent their in ner faces filled with a moisture and acid resistant material, and having a coating of said resistant over said faces bonded with the resistant mate rial contained in said capillaries and recesses, and C5 a joint filling material in the joints between the individual wall members held In place by Inter locking with the rough edges of said adjoining wall members'. ' 5. A silo wall formed of a plurality of concrete 70 members each haring rough joint edges and each member being infused on its inner surface with paraffin or other material protecting the wall members against the action of ensilage juices, joints between the wall members filled with ce- 75 DSW 379504 3,016,886 3 meni or other Joint-filling material Interlocking with the rough edges of the adjoining wall mem bers and held in the Joints by reason of the in terlocking of the rough edges irrespective of the B function of said material. 6. A silo wall formed of a plurality of concrete _ members each having rough Joint-edges, each of said members being infused from its inner sur face and Its Joint-edges with paraffin or asphalt, cement filling the Joints between the wall mem bers and retained by the rough edges of the Joints and a coating of paraffin or asphalt bonded to said Infused coating on the inner surfaces of the members. WALTER O. BRASSERT. 6 DSW 379505 STLCOPCB4100277 Oct. 8, 1935. w. o. brassert CONCRETE CONTAINER WALL Filed Doc. 29, 1932 * 2,016,886^ S.. , II ^ -4 II Fig. 1 UI L , Fig. 2 DSW 379506 STLCOPCB4100278