Qingyun Kangjing Building Materials Co., Ltd.

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What do D50 and D90 mean, respectively? Why is it essential to understand these two parameters when working with ultrafine materials?

2026-03-30

Many people recognize their importance, but they are unclear about what exactly these parameters represent. In fact, for ultrafine materials, D50 and D90 are fundamental and critically important particle-size parameters. Understanding these two metrics helps to more quickly assess the material’s fineness, particle-size distribution, and grade differences.

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Why Ultrafine GGBS is a Key Ingredient in UHPC and Marine Concrete

2026-03-16

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What is Microfine Cement and How Does It Benefit Underground Engineering Projects?

2026-03-12

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Ultrafine Oilwell Cement for Lost Circulation & ZonalIsolationHSR500 / HSR700 / HSR1000 / HSR1340

2026-02-18

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Microfine Oilwell Cement for Lost Circulation & Wellbore Stability (High Temperature / High Pressure)

2026-01-31

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Tunnel Water Leakage Sealing with Microfine Cement Grouting: K1000 vs K1340 Selection Guide

2026-01-19

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Special Cement: The “Underground Guardian” That Pushes the Limits

2025-11-13

Low-density cement: Incorporates hollow microspheres or bentonite, with a density as low as 1.2 g/cm³

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Cement Admixtures: Turning “Glue” into “Smart”

2025-11-13

To enable cement to perform effectively in complex downhole environments, we must add a “magic potion”—additives

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Oilwell Cement: How Is the “Steel Reinforcement” for Kilometer-Deep Wells Made? Unveiling the Cutting-Edge Technology Behind Cementing!

2025-11-13

In oil extraction, what truly determines the “lifespan” of an oil well is the cement used during cementing

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Kang Jing's Official Account

Kang Jing WeChat Customer Service

+86-1880923 6578

Northwest Center: Shaanxi, Xi'an, Weiyang, Room 2002, Rongmin Group
Email:

expor@kangjinggrouting.com

Website:

www.kangjinggrouting.com

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WhatsApp：8618809236578

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International email：expor@kangjinggrouting.com

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