The ConcreteAdditives.net editorial team takes error reports, source suggestions, press and citation requests through one form and one address, editorial@concreteadditives.net. Supplier quote requests and provider requests do not go to that inbox; they go to the supplier RFQ and the provider match.
An error report needs 7 details, and the body that issues a standard, code or regulation settles the value. A newer official document replaces a published value. The site covers chemical admixtures, supplementary cementitious materials, fibers and integral pigments, with the standards that classify them, and the team answers for the values on every page about these concrete additives.
Each value is traced to its source: standards and codes to their issuing body, product values to the data sheet named with them, prices to the dated source beside them (methodology and fact-checking).
How Do I Reach the ConcreteAdditives.net Editorial Team?#
The editorial team is reached through the contact form below or by email to editorial@concreteadditives.net; both go to the same inbox, and the form's topic menu sorts each message. This page lists no telephone line and no postal address. Five kinds of request and their channels are listed below.
| Request | Channel | What to include | Handled by |
|---|---|---|---|
| Error in a value | Contact form, topic "Error report" | The 7 details of the error-report list | Editorial team |
| Source or standard revision | Contact form, topic "Suggestion" | Source link, edition or date | Editorial team |
| Supplier quote | Supplier RFQ | Additive type, standard required, quantity and packaging, delivery country | Independent suppliers |
| Mix design, testing or specialty placement | Provider match | Project type, tests or placement method, country | Independent providers |
| Press, citation or data use | Contact form or editorial@concreteadditives.net | Outlet, page URL | Editorial team |
Write to the editorial team
How Do I Report an Error in a Dosage, Standard or Hazard Value?#
Report an error with the page URL, the value as published and the primary source that shows the correct value, because the editorial team corrects a value only against the document of the body that issues it. Every standard the site cites is listed under concrete admixture standards.
What should an error report include?#
An error report needs 7 details, listed below.
- Give the page URL.
- Quote the value as published.
- State the correct value with its unit, metric first with the US value in parallel.
- Give the dosage basis for any dose: % by mass of cement or of total cementitious materials, mL/100 kg or fl oz/cwt, as supplied or solids.
- Name the source with its full designation and edition, or the rule with section and date.
- For one product's value, name the product and the data sheet date.
- State your role (producer, specifier, engineer, lab, contractor, other); this item is optional.
Which primary sources settle a disputed value?#
Each kind of value is settled by the body that issues it: ASTM, CEN and BIS for product standards, ACI for codes and terminology, EUR-Lex and eCFR for law, ECHA for hazard classification and PubChem for substance identity.
A newer official document beats the published value. A manufacturer data sheet never beats a standard and describes only its own product. Standards are cited from the issuing body's catalogue with the full designation and edition, never from an unauthorized copy.
The table pairs each kind of value with the body whose document settles it.
| Kind of value | Issuing body (cite from) | Example as the site states it |
|---|---|---|
| US admixture classes | ASTM (store) | ASTM C494/C494M-24, active, eight types A to G and S |
| Withdrawn US standards | ASTM (store) | ASTM C1017/C1017M withdrawn 2022, no replacement; flowing-concrete superplasticizers are C494 Type F or G |
| European concrete specification | CEN (national body catalogue) | EN 206-1:2026 (CEN approval 2026-01-19) supersedes EN 206:2013+A2:2021 |
| European admixture standard | CEN | EN 934-2:2009+A1:2012; admixture dose at most 5 % by mass of the cement |
| Indian admixture standard | BIS (standards portal) | IS 9103:1999, active, reaffirmed 2018, with two amendments |
| Building code limits | ACI (code), NRMCA reprint | ACI CODE-318-25 Table 19.3.2.1: water-soluble chloride at most 0.15 % (nonprestressed, C2) and 0.06 % (prestressed) by mass of cementitious materials |
| Terminology | ACI (CT-25) | chemical admixture: "a liquid, or dispersible powder, used as an ingredient in a cementitious mixture to improve its economy and/or properties in the plastic and/or hardened state" |
| EU restrictions | EUR-Lex | REACH Annex XVII entry 47: soluble chromium VI at most 2 mg/kg (0.0002 %) of the total dry weight of the cement when hydrated |
| US workplace limits | eCFR (OSHA) | 29 CFR 1926.1153: respirable crystalline silica PEL 50 µg/m³ (8-hour TWA), action level 25 µg/m³, effective 2016-06-23 |
| CLP classification | ECHA | calcium chloride: "Harmonised CLP Annex VI (index 017-013-00-2): Eye Irrit. 2, H319" |
| Substance identity | PubChem (CAS), ECHA (EC) | calcium nitrite, CAS 13780-06-8, is not calcium nitrate, CAS 10124-37-5 |
| One product's value | Manufacturer data sheet | named product only, "typical value of {product}", never a requirement |
What happens after an error is reported?#
The editorial team checks the report against the named source, corrects the value on every page that states it and dates the correction. How corrections are marked is set out in our editorial policy.
Six error types show the wrong form and the correct form.
- Superseded edition: "ASTM C494-19 as current" becomes ASTM C494/C494M-24.
- Withdrawn standard: "ASTM C1017 Type I flowing concrete" becomes C1017 withdrawn 2022, with C494 Type F or G for flowing concrete.
- Chloride basis: "0.15 % chloride by mass of cement" under ACI becomes by mass of cementitious materials, ACI CODE-318-25 Table 19.3.2.1.
- Chromium VI basis: "2 ppm of concrete" becomes 2 mg/kg (0.0002 %) of the dry cement, REACH Annex XVII entry 47.
- Name and CAS confusion: calcium nitrite (13780-06-8) written as calcium nitrate (10124-37-5).
- Bare dose: "1 %" becomes a dose with its basis, such as 1 % by mass of cement as supplied, or mL/100 kg of cementitious material with fl oz/cwt in parallel (1 fl oz/cwt = 65.2 mL/100 kg).
Can I Suggest a Source, a Standard Revision or a Missing Additive?#
Suggestions are welcome for 4 things: a primary source we do not cite, a new edition or withdrawal of a standard, a changed code or regulatory limit, and an additive within the site's scope that has no page.
- Source: a peer-reviewed paper or an agency report.
- Standard revision: a new ASTM edition, a CEN revision or a BIS reaffirmation.
- Code or rule change: an ACI code cycle or a REACH amendment.
- Missing additive: anything added to a concrete, mortar, grout or shotcrete batch that a producer, specifier or contractor selects and doses.
A suggestion carries the source link and the edition or date. Dated changes to standards and rules appear as concrete additives news.
Where Do Supplier Quote and Provider Requests Go?#
Supplier quote requests and provider requests go to two separate tools, not the editorial inbox, which does not pass on commercial requests. The supplier RFQ covers admixtures, supplementary cementitious materials, fibers and integral pigments. The provider match covers mix design, testing and specialty placement.
Send your specification to independent suppliers. Your request goes to independent providers of mix design, testing or specialty placement.
Press, Citation and Data-Use Requests#
Press, citation and data use requests go to editorial@concreteadditives.net with the topic "Press or citation". Values may be quoted with the page URL and the primary source the page names. No company pays for placement. Market sizes appear only as dated analyst estimates with publisher and year, never as one figure.
What Does the Contact Form Not Handle?#
The contact form does not handle emergencies, brand rankings, price quotes by message, homeowner questions or topics outside concrete additives. Products applied to hardened concrete surfaces, cement-mill additives and asphalt are outside the scope of this site.
Is the contact form for chemical exposures or site emergencies?#
No: for an exposure, follow section 4 of the product safety data sheet and contact a physician or poison center; for a site emergency, call the local emergency number.
Does ConcreteAdditives.net recommend brands or rank suppliers?#
No: a brand question is answered by standard conformity, for example what an ASTM C494/C494M-24 Type F claim requires and where the data sheet shows it. No company is named, ranked or called a partner.
Does the editorial team quote prices?#
No: prices appear only as dated public-record ranges with region and currency, never as a price for today. A quote for a specific product comes through the supplier RFQ.
Are homeowner and retail product questions answered?#
No: the site is written for producers, specifiers, engineers, lab staff and contractors, and residential questions are answered at specification level only.
Who writes and checks the ConcreteAdditives.net pages?#
How is data sent through the contact form handled?#
Contact form data is kept for 24 months and then deleted. Details are in the privacy policy.