using mortar heel block as protective layer, are bound 

solid .When the cavalry puts up the fixed reinforced bar if adopt a reinforced bar, Ying Jia  also solders water iron plate or fixation just goes ahead, to strengthen water-proof effect in the 

heel block.This project uses new materials nylon to have fixed there is an effect's had guarded against reinforced bar protective layer deviation piece big mass common failings.

The concrete stirring and mixing makes and transports

Since the water-proof concrete requires that higher closely knit , reason why  stir and mix system also need to have  the fairly good homogeneity , should be ready for burning as follows almost for this purpose 

1) ensures that mixing time , mixing at every time are secondary jump into a expect the general ejection of compact block of wood less than 2 mins. 

2) should use the apposition agent , the solution queen who should manufacture certain thickness from apposition agent adds the mixer inner, the dried powder or high concentration solution will add an agent extra not to adds the mixer inner directly ,prevent from mixing is uneven but part 

concentrates, both lose the apposition agent effect, and affect concrete mass.

3) responds to the assured source of life degree having a spot test on the admeasurement concrete at the regular intervals collapsing in the process being under construction , construction is middle 

if Yu rains or other cause, respond to the ratio determining whose water ratio, and adjusting the composition being under construction in time when change happened in sandstone moisture content. 

4) project uses the commodity concrete , has boundary have raised a concrete stirring mass and of all kinds effect apposition agent adulterating falls when amounts , the water ash having controlled a concrete strictly collapsing.

 5) concretes concrete adopt a pump to have given handicraft , effective avoiding a concrete producing the phenomenon isolating Mi Shui and leaving out thick fluid in the

4.process of transportation.

2.4 Matters needing attention in being under construction

1) construction school assignment soft and floury is pided .Water-proof concreting should stratify strictly being in progress, and a continuous construction iscompletedThe front and back and high and low connect between the tier should subjugate within the cement initial setting 

time，For this purpose ,with handling a worker piding into several, at the same time each other, school assignment group faces or it is all right for each other, carry on the back .

2)Achieve strictly fixed point determines the amounts of the components of a substance material down According to the vehicle capacities stratifying concrete altitude and the means of transport, the quantify carrying out fixed point strictly is able to go down one important ring expecting that this is to improve water-proof concreting mass.

3) insist that you go down material opening the door or use string to expect that under barrel (chute)Be to prevent a cement paste from parting from aggregate for , to expect that liberty should not exceed 1.5 ms now and then highly under water-proof concrete。The water-proof structure reinforced bar is concentrated Should concrete altitude when higher , respond to according to the material stipulating that you go down material opening the door on form board or using string of barrels (chute) to fall, prevent a cement paste from parting from aggregate for , avoid at the 

same time also the cement paste or the concrete 

accumulating the place and cement paste alternating in the reinforced bar loosely splashing sticky Yu form board with outsideNow that material is difficult under bringing about a later, the surface affecting structure glossy , becomes in the future leakage hidden trouble.