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  • Some Problems In The Application Of Polycarboxylate Superplasticizer(III)

    Some Problems In The Application Of Polycarboxylate Superplasticizer(III)

    Dosage and water consumption of polycarboxylate superplasticizer: Polycarboxylate superplasticizer has the characteristics of low dosage and high water reduction. When the dosage is 0.15-0.3%, the water-reducing rate can reach 18-40%. However, when the water-to-binder ratio is small (below 0.4), ...
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  • Some Problems In The Application Of Polycarboxylate Superplasticizer(II)

    Some Problems In The Application Of Polycarboxylate Superplasticizer(II)

    The influence of the mud content of sand on the polycarboxylate superplasticizer is often fatal, which is more obvious than the naphthalene series and aliphatic superplasticizers. When the mud content increases, the workability of conc...
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  • Some Problems In The Application Of Polycarboxylate

    Some Problems In The Application Of Polycarboxylate

    Superplasticizer(I) Post Date: 9,May,2022 (一) The adaptability of polycarboxylate superplasticizer and cementitious materials: In practice, it has been found that Polycarboxylate Superplasticizer have obvious adaptability problems to different cements and different types of mineral admixtures, a...
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  • Concrete Sealing And Curing Agent Construction Needs To Add Water Reducer?

    Concrete Sealing And Curing Agent Construction Needs To Add Water Reducer?

    Post Date: 5,May,2022 When cement is mixed with water, due to the mutual attraction between the cement molecules, the collision of the thermal motion of cement particles in the solution, the opposite charges of the cement minerals during the hydration process, and the ce...
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  • Concrete Sealing And Curing Agent Construction Needs To Add Water Reducer?

    Concrete Sealing And Curing Agent Construction Needs To Add Water Reducer?

    When cement is mixed with water, due to the mutual attraction between the cement molecules, the collision of the thermal motion of cement particles in the solution, the opposite charges of the cement minerals during the hydration process, and the certain association of t...
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  • Compatibility Of Admixtures With Other Raw Materials Of Concrete

    Compatibility Of Admixtures With Other Raw Materials Of Concrete

    Post Date: 26,Apr,2022 Effects of machine-made sand quality and admixture adaptability on concrete quality   The mother rock and production technology of machine-made sand in different regions are very different. The water absorption rate of machine-made sand affects the slump loss of concrete to...
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  • Handling Environmental Conditions When Placing Concrete Toppings(III)

    Handling Environmental Conditions When Placing Concrete Toppings(III)

    Cold Weather Under cold weather conditions, emphasis is placed on preventing early age freezing and managing ambient temperatures during curing to promote strength development. Managing the base slab temperature during placement and curing of the topping slab may be the most challenging aspect re...
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  • Concrete Admixtures: The “Heroes Behind” Engineering Projects

    Concrete Admixtures: The “Heroes Behind” Engineering Projects

    Concrete admixtures, referred to as admixtures for short, refer to substances added before or during concrete mixing to improve the properties of fresh concrete and/or hardened concrete. The characteristics of concrete admixtures are many varieties and  small dosage, wh...
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  • Handling Environmental Conditions When Placing Concrete Toppings(II)

    Handling Environmental Conditions When Placing Concrete Toppings(II)

    Hot Weather Under hot weather conditions, emphasis is placed on managing concrete setting times and minimizing moisture loss from the placement. The simplest way to summarize hot weather recommendations for topping construction is to work in stages (pre-placement, placement, and post-placement)....
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  • What Is The Difference Between Lignin, Lignosulfonate And Sodium Lignosulfonate

    What Is The Difference Between Lignin, Lignosulfonate And Sodium Lignosulfonate

    Post Date: 28,Mar,2022 Lignin is second only to cellulose in natural reserves, and is regenerated at a rate of 50 billion tons every year. The pulp and paper industry separates about 140 million tons of cellulose from plants every year, and obtains about 50 million tons of lignin by-products, but...
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  • Handling Environmental Conditions When Placing Concrete Toppings(I)

    Handling Environmental Conditions When Placing Concrete Toppings(I)

    Post Date: 21,Mar,2022 Toppings, like any other concrete, are subject to general industry recommendations for hot and cold weather concrete pouring practices. Proper planning and execution are critical to minimizing the negative effects of extreme weather on topping, reinforcement, trimming, cur...
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  • Revealing the Mystery of Admixtures: Water-Reducing and Set-Controlling

    Post Date: 14,Mar,2022 An admixture is defined as a material other than water, aggregates, hydraulic cementitious material or fiber reinforcement that is used as an ingredient of a cementitious mixture to modify its freshly mixed, setting or hardened properties and that is added to the batch befo...
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