Everbuild 403 Premium Concrete Hardener and Dustproofer, 5 Litre

Product Information

With freshly laid concrete surfaces, once the concrete has cured it leaves a fine film of dust on the surface which, when finishing a job, can cause havoc with freshly painted surfaces and the like. Typically most standard water reducing admixtures can reduce the required water volumes by up to around 10% but in recent years developments within the admixture field have seen newer mid-range water reducers emerge. Although generally they only reduce water volumes up to around 8% they are generally more stable when exposed to a range of different temperatures. Retarding Admixtures

It was not long ago that chemical admixtures for concrete were labeled a witches’ brew. Today they are regarded as essential to the industry. Chemical hardeners have to make the same trip as concrete admixtures, but this trip is being made in record time. With the ever-mounting evidence of good performance and supporting technical data, new generation chemical hardener/densifers (the post-hardening admixture) are now being thought of in the area of wear resistance in much the same way as reinforcing steel is in the area of structural concrete. To help with concrete hardening, Hard-Cem is first added into the concrete mix. From there, it disperses throughout the mix, allowing hard particles to get embedded into the cement paste, increasing the hardness of the entire concrete slab. In turn, the cement paste wears more slowly, which reduces material loss that would normally expose the underlying aggregates and make the slab uneven and less functional. There are essentially 5 distinct types of admixtures or functions as they are known in the trades; water-reducing, plasticizers or superplasticizers, air-entraining, retarding and accelerating.The substrate must be kept wet with material for 20 minutes. If an area begins to dry, re-mist with Concrete Hardener. Ensure that proper concrete placement was followed in preparation of the floor slab. Use a metal trowel or a wooden float to smoothen and level the concrete mixture to achieve an even and dense surface. ABC Floor Hardener is applied on concrete surfaces in two stages. The American Society for Testing and Materials (ASTM) C779 / C779M Standard Test Method for Abrasion Resistance of Horizontal Concrete Surfaces covers three procedures for determining the relative abrasion resistance of horizontal concrete surfaces. The procedures differ in the type and degree of abrasive force they impart and are intended for use in determining variations in surface properties of concrete affected by mixture proportions, finishing, and surface treatment. Toughness

After 24 hours, the surface treated can be damp mopped or scrubbed with an auto scrubber and pH neutral cleaner. Some decent examples of concrete admixtures or additives are accelerators, retarders, colourers, waterproofers, frost proofers just to mention a few. In fact, Hard-Cem is capable of doing this for both regular concrete slabs and concrete joints! However, it’s important to note that if you’re expecting severe wear on your concrete joints to the point that joint-armoring technologies are required, Hard-Cem is not meant to be a replacement for that technology specifically. How Does Hard-Cem Increase Concrete Durability without Increasing Cement Content? Application time for dry shake products is influenced by every variable which affects the placing of concrete, and can therefore vary substantially, depending on the prevailing conditions. In days past, washing up liquid was typically used to create the same affect, however it has now been proven that using washing up liquid can actually reduce the strength of a concrete mix so don’t be tempted to use this method!

Colour Hardener - Sandstone 25kg

Because it’s in your retail store, will there be a lot of foot traffic? Is this a restaurant kitchen floor with the possibility of food and drink spills? Knowing how you want to use your concrete floor and how you want it to appear is crucial when choosing the correct hardener.

The C-S-H gel fills pores in the floor surface, making the concrete stronger and more resistant to wear. Compaction: The first application must be worked into the slab followed immediately by application of thesecond stage quantity of Sikafloor®-FibreShield. Concrete hardening powder is used in a variety of concrete constructions, including reinforced and unreinforced structures. The usable life of structures is considerably improved by utilizing this product.If you still have some questions about Hard-Cem or just want to satisfy a more personal curiosity in our novel concrete hardener, we have plenty of digital resources just for you: Whereas accelerators speed up the curing of a concrete mix, as you may have guessed, retarding admixtures slow down the curing process. A factory floor got a polished finish, followed by a lithium-silicate hardener. To answer questions about the effect of polishing, several different finishes were tried in a non-critical area. I tested the floor a month later, and Graph 3 shows what I found. The troweled finish and the 800-grit polish tested about the same. The 1500-grit polish did much better, but the lithium silicate made no difference. For manual application, the dry shake must be spread once the concrete can be stepped on, without leaving a print deeper than 3–5 mm. Concrete normally contains some free lime—calcium carbonate—which contributes nothing to strength and durability. It’s there because the chemical reactions that make concrete hard don’t reach every last bit of cement.